Minerals & Metals

Oil Casing: What are 13Cr Pipe and Super 13Cr Material? 13Cr Oil Casing 114.3mm Oil casing is an essential equipment in oil and gas extraction. It not only provides structural support for oil wells but also protects the wellbore from corrosion and collapse. Among various materials, 13Cr pipe and Super 13Cr material are highly regarded for their excellent performance. 13Cr pipe is a high-chromium alloy steel with a chromium content of approximately 13%. This material endows the casing with outstanding corrosion resistance, particularly in acidic environments containing carbon dioxide (CO₂) and hydrogen sulfide (H₂S). The addition of chromium enhances the passivation ability of the steel, forming a dense chromium oxide film that effectively blocks the invasion of corrosive media. Additionally, 13Cr pipe possesses high strength and toughness, allowing it to withstand complex downhole conditions. Company Description Tianjin Grand Victory Petroleum Equipment Co., Ltd. is a comprehensive enterprise for production, processing, sales, technology research and development, and spot storage. Located in Jinghai District, Tianjin, China, it was founded in 2008 with a registered capital of 11.18 million yuan. It has import and export rights, ISO9001 quality system certification, American Petroleum Institute API 5CT certification and a number of national patent certificates. The production workshop is equipped with several types of equipment such as highprecision CNC lathes, thread tightening machines, hydraulic presses, etc., and complete inspection and measurement instruments. Products include J55, K55, N801/Q, L80, P110 and other oil casing, couplings, Pup Joint、Xover （Cross over）; 80S, 90S, 110S, L801Cr/3Cr/13Cr and other highcorrosion resistant oil casing spot storage, with a longterm reserve of about 2,000 tons. At the same time, it undertakes the processing and copper plating of special sealing threads such as direct connection, wedge shape, double step, variable pitch, etc. for oil well pipes and petroleum accessories, with fast delivery and excellent quality, reducing costs and increasing efficiency for customers. Our vision: to build an international oil pipeline equipment enterprise with integrity and innovation. We welcome leaders and friends from all walks of life to visit us for cooperation and common development. Company’s Unique Advantages: 1. Seamless Integration of Production and Sales: Our scientific management allows for flexible production scheduling. Since we focus on doing one thing exceptionally well, our production is entirely aligned with order timelines, making it easier to implement the planned arrangements. 2. Comprehensive Range of Special Couplings at Lower Prices: We possess multiple coupling design authorizations and have a wealth of experienced workers, enabling us to produce couplings that meet various user requirements at a lower cost. This includes designs such as VAM, HYD511, OTTM, CBS3, 3SB, HSM2, and more. 3. Industry-Wide Recognition: Over the past 17 years, our integrity, quality, and advantages have earned us an excellent reputation in the industry, which can be verified at any time. Contact:Bone Email:Bone@dlpoctg.com Whatsapp/WeChat /Tel: +86-18222899636

Minimum Order: 1 bags

Advantages/Features: The company has import and export rights, ISO 9001 quality system certification, API 5CT certification from the American Petroleum Institute, and multiple national patent certificates. Our production workshop for oil pipes and various materials, including P110S STPCQ oil pipes, is equipped with highprecision CNC lathes, thread rolling machines, hydraulic pressure machines, and a complete set of inspection instruments. Our product range includes oil casing and couplings covering J55, K55, N801/Q, L80, and P110, as well as short joints and conversion joints. We maintain an inventory of approximately 2,000 tons of high corrosionresistant oil casing, including 80S, 90S, 110S, and L801Cr/3Cr/13Cr. We also undertake special sealing thread processing for oil well pipes and petroleum fittings, including direct connection types, trapezoidal shapes, doublestep, and variable pitch threading, as well as copper plating services. Our products ensure fast delivery and high quality, helping customers reduce costs and increase efficiency. Our vision is to build an international petroleum pipeline equipment enterprise through integrity and innovation. We welcome leaders and friends from all sectors to visit and cooperate for mutual development. 1. Established in 2008, we have 17 years of experience, a registered capital of 11.18 million RMB, an 8,000 m² workshop, and an annual foreign trade turnover of 20 million RMB. 2. Our oil pipes and couplings have import and export rights, ISO 9001 quality system certification, API 5CT certification from the American Petroleum Institute, and multiple national patent certificates. 3. Our production workshop is equipped with highprecision CNC lathes, thread rolling machines, hydraulic pressure machines, and a complete set of inspection instruments. 4. Our products include J55, K55, N801/Q, L80, and P110 oil casings, couplings, short joints, and conversion joints. 5. We maintain a stock of high corrosionresistant oil casings, including 80S, 90S, 110S, and L801Cr/3Cr/13Cr, with an annual inventory of around 2,000 tons. 6. We provide processing services for special sealing threads, including direct connection types, trapezoidal shapes, doublestep, and variable pitch threading, producing tens of thousands of special couplings each year. Oil Pipe Specifications: 1.05'', 1.315'', 1.66'', 1.9'', 23/8'', 27/8'', 31/2'', 4'', 41/2''. Steel Grades: J55, K55, N801, N80Q, L801, P110, L803CR, 9CR, 13CR, P11013CR (Super 13CR), 28CR, etc. Coupling Types: NU (Flat Coupling), EU (Thickened Coupling). Production Process: Hot rolling. Product Use: Used for drilling oil wells. Packaging Method: Steel straps/steel frames, or according to customer requirements. Annual Supply Volume: 300,000 tons. We can also process various specifications of short joints according to customer requirements, including EU thickened, double male short joints, casing short joints, highpressure adjustment short joints, conversion joints/XOver, couplings, and thread protectors. Processing forms include PIN X PIN (double male short joint) and PIN X BOX (one male and one female finished short joint), with processable lengths ranging from 2 feet (ft) to 20 feet (ft); end processing forms can be EUE (thickened) or NUE (not thickened). Our company strictly implements API Spec 5CT standards and the ISO 9001 quality management system. We have manufacturing equipment, including CNC lathes, CNC coupling machines, automatic flaw detectors, CNC hydrostatic pressure testing machines, automatic marking machines, automatic painting and labeling machines, 16ton cranes, ultrasonic thickness gauges, and automatic feeding systems for production and testing. While meeting domestic market demands, we provide highquality products and services to numerous enterprises and have established longterm supplier relationships with countries and regions such as Saudi Arabia, the United Arab Emirates, Sudan, Kuwait, and Turkey. Corporate Purpose: Integrity, Pragmatism, Mutual Benefit, WinWin. Management Philosophy: Based on humane management, we implement modern management throughout all departments and processes of the enterprise; marketoriented, adhering to integrity and legality, and achieving winwin situations with customers. We always adhere to the principle of prioritizing people before tasks, insisting on equipment and scientific management as the foundation, and providing customers with highquality products. With a complete marketing network and service system, we ensure satisfactory service for our customers. We look forward to working together to create brilliance!

Minimum Order: 1 bags

Copper Plating Services: We produce tens of thousands of special couplings annually. Oilfield Connection Oil Pipe Reducers: 35CrMo. We can process various types of oil pipe couplings: Specifications: 1.941/2 Thread Types: EUE (thickened), NUE (not thickened). Short Drill Pipe Conversion Joints: Oilfield connection oil pipe reducers 35CrMo, with specifications of 1.941/2 and various thread types. Variable Coupling Conversion Joints: Double male (PIN X PIN), one male and one female (PIN X BOX). Casing Couplings: Specifications: 41/2 to 20 inches. Thread Types: STC (Short Round Coupling), LTC (Long Round Coupling), BTC (Buttress Coupling). We can also customize various couplings and joints according to drawings. Standards: API5CT, API5L, API5B. Oil Pipe Specifications: 23/8” to 41/2”, with end processing types NUE and EUE. We can also process various sizes of oil casing short joints, double male short joints, reducer short joints, and conversion joints according to orders, ranging from 2FT to 20FT. Oil Casing Specifications: 41/2” to 20”, with thread types STC, LTC, BTC, etc. Materials: H40, J55, K55, N80, L80, C90, C95, T95, P110, Q125, 13Cr80, 13Cr110, Super 13Cr, etc. We always adhere to the principle of prioritizing people before tasks, insisting on equipment and scientific management as the foundation to provide customers with highquality products. With a complete marketing network and service system, we ensure satisfactory service for our customers. We look forward to working together to create brilliance!

Minimum Order: 1 bags

Advantages/Features: API 5CT certification from the American Petroleum Institute, and multiple national patent certificates. Our production workshop is equipped with several highprecision CNC lathes, thread rolling machines, hydraulic pressure machines, and complete inspection instruments. Our products include oil casings, couplings, short joints, and conversion joints, covering specifications such as J55, K55, N801/Q, L80, and P110. We maintain an inventory of approximately 2,000 tons of high corrosionresistant oil casings, including 80S, 90S, 110S, and L801Cr/3Cr/13Cr, stocked yearround. We also undertake special sealing thread processing for oil well pipes and petroleum fittings, including direct connection types, trapezoidal shapes, doublestep, and variable pitch threading, as well as copper plating services. With fast delivery and high quality, we help customers reduce costs and increase efficiency. Our vision is to build an international petroleum pipeline equipment enterprise through integrity and innovation. We welcome leaders and friends from all sectors to visit and cooperate for mutual development. 1. Since 2008, we have 17 years of experience, a registered capital of 11.18 million RMB, an 8,000 m² workshop, and an annual foreign trade turnover of 20 million RMB. 2. We have import and export rights, ISO 9001 quality system certification, API 5CT certification from the American Petroleum Institute, and multiple national patent certificates. 3. Our production workshop is equipped with several highprecision CNC lathes, thread rolling machines, hydraulic pressure machines, and complete inspection instruments. 4. Our products include J55, K55, N801/Q, L80, and P110 oil casings, couplings, short joints, and conversion joints. 5. We maintain a stock of high corrosionresistant oil casings, including 80S, 90S, 110S, and L801Cr/3Cr/13Cr, with an annual inventory of around 2,000 tons. 6. We provide processing services for special sealing threads, including direct connection types, trapezoidal shapes, doublestep, and variable pitch threading, producing tens of thousands of special couplings each year. Oil Pipe Coupling Standards N80/L80 oil pipe couplings, 27/8” couplings in stock. Oil pipe coupling standards: API SPEC 5CT, API SPEC 5B, and the 11th edition of the coupling standard, BTC. Material of Oil Pipe Couplings: H40, J55, N801, N80Q, L80, P110. Specifications of Oil Pipe Couplings: Outer diameter 55.88~141.3 mm (1.9"~4 1/2"). Thread Types: Nonthickened (NUE), thickened (EUE), special clearance (SCC). Purpose of Oil Pipe Couplings: Used to connect two threaded oil pipes and has an internal threaded cylindrical body. Specifications: 4 1/2” 20” Standards: API 5CT/5B, the 11th edition of the coupling standard, BTC. Manufacturers of Oil Pipe Couplings, Extended Oil Pipe Couplings, Special Clearance Couplings. Casing Couplings: Processing thread types STC (Short Round Coupling), LTC (Long Round Coupling), BTC (Buttress Coupling). Oil Pipe Couplings: 23/8'', 27/8'', 31/2'', 41/2''; Thread types: NUE, EUE. Casing Couplings: 41/2'', 51/2'', 65/8'', 7'', 95/8'', 103/4'', 133/8'', 20''; Thread types: STC, LTC, BTC. 1. We provide coupling blanks (according to API SPEC 5CT (9th edition) requirements) with quality specifications and related certifications to ensure that the coupling blanks are produced according to API requirements. 2. Thread inspection of casing couplings according to the 11th edition of the coupling standard, BTC. 3. Thread processing for couplings, including tight distance, tooth height, pitch, taper, and other parameters, is inspected according to API Spec 5CT (9th edition) and API Spec 5B (15th edition); all dimensional and thread parameter inspections must be well documented. 4. The surface of the threads must be smooth and free of significant tearing, tool marks, abrasion marks, shoulders, or any other defects that disrupt the continuity of the threads; internal and external chamfers and starting threads must be free of burrs and other flaws. 5. The critical thickness of the coupling should be specified. 6. Internal and external edges of the coupling should be rounded, with R≥0.5 mm, and the edges on the bearing surface of the coupling should be chamfered. 7. Thread flaw detection. We sincerely look forward to your inquiries! We are dedicated to serving you!

Minimum Order: 1 bags

Product Information: Oil Casing and Tubing Short Joints 7. Industry Standards Oil casing and tubing short joints must comply with various industry standards to ensure safety and reliability. Key standards include: - API Spec 5CT: Governs the specifications for casing and tubing used in oil and gas wells. - API Spec 5B: Covers the requirements for the threads used in casing and tubing. - ISO 11960: Specifies the requirements for steel pipes for use as casing or tubing for wells. - NACE MR0175/ISO 15156: Addresses materials for use in H2S-containing environments. 8. Conclusion Oil casing and tubing short joints play a vital role in the oil and gas industry, providing essential connections in drilling and production operations. Their specifications, materials, and manufacturing processes are designed to meet the rigorous demands of the industry, ensuring reliability and safety. By facilitating flexibility and cost savings, short joints are indispensable components that contribute to the efficiency and effectiveness of oil and gas extraction. As the industry continues to evolve, the importance of high-quality short joints will remain a critical factor in successful drilling operations. Copper Plating Services: We produce tens of thousands of special couplings annually. Oilfield Connection Oil Pipe Reducers: 35CrMo. We can process various types of oil pipe couplings: Specifications: 1.941/2 Thread Types: EUE (thickened), NUE (not thickened). Short Drill Pipe Conversion Joints: Oilfield connection oil pipe reducers 35CrMo, with specifications of 1.941/2 and various thread types. Variable Coupling Conversion Joints: Double male (PIN X PIN), one male and one female (PIN X BOX). Casing Couplings: Specifications: 41/2 to 20 inches. Thread Types: STC (Short Round Coupling), LTC (Long Round Coupling), BTC (Buttress Coupling). We can also customize various couplings and joints according to drawings. Standards: API5CT, API5L, API5B. Oil Pipe Specifications: 23/8” to 41/2”, with end processing types NUE and EUE. We can also process various sizes of oil casing short joints, double male short joints, reducer short joints, and conversion joints according to orders, ranging from 2FT to 20FT. Oil Casing Specifications: 41/2” to 20”, with thread types STC, LTC, BTC, etc. Materials: H40, J55, K55, N80, L80, C90, C95, T95, P110, Q125, 13Cr80, 13Cr110, Super 13Cr, etc. We always adhere to the principle of prioritizing people before tasks, insisting on equipment and scientific management as the foundation to provide customers with highquality products. With a complete marketing network and service system, we ensure satisfactory service for our customers. We look forward to working together to create brilliance!

Minimum Order: 1 bags

1. HC110 Oil Casing Q125, 10th Edition, Oil Well Tubing, Special-Purpose Casing, C90, 90SS, L80-1 Oil casing is an essential type of pipe in the oil and natural gas drilling industry. The HC110 Oil Casing Q125, 10th Edition, as a high-end product, has become a leader in the field of special-purpose oil well casing due to its outstanding performance and wide range of applications. Product Features: - The HC110 Oil Casing Q125 is manufactured using advanced processes and complies with the API 5CT standard. It features high strength, high toughness, and corrosion resistance. - The chemical composition is strictly proportioned, with carbon content ≤0.35%, manganese content ≤1.35%, nickel content ≤0.99%, chromium content ≤1.50%, and molybdenum content ≤0.85%. These alloy elements ensure excellent performance in harsh oil drilling environments. - In terms of mechanical properties, the yield strength ranges from 862 to 1034 MPa, the tensile strength is ≥931 MPa, and the impact toughness is ≥60 J in the transverse direction and ≥100 J in the longitudinal direction at 0°C, enabling it to withstand complex stress conditions. Application Fields: - This product is widely used in the oil and natural gas drilling industry as a casing for oil wells. It can withstand complex underground pressures and geological conditions, ensuring the safety and stability of oil wells. Additionally, it can be used to manufacture tubing, casing couplings, and other petroleum drilling tools and equipment, contributing to efficient extraction operations. Product Advantages: - The manufacturing process of the HC110 Oil Casing Q125, 10th Edition, strictly controls quality. From raw material procurement to finished product inspection, every step is rigorously tested to ensure reliability and stability. Moreover, we offer customized services to meet the individual needs of different customers. Casing Connection Types: 1. LTC (Long Thread Connector): Long round thread. Although LTC threads are similar in shape to STC threads and can connect, they are generally not recommended for connection due to differences in the torque they can withstand. 2. STC (Stub (Short) Thread Connector): Short round thread. STC and LTC threads are both API standard threads, differing only in thread length. The longer one is LTC, and the shorter one is STC. For pipes with an outer diameter of 4-1/2", a thread length exceeding 3 inches is typically LTC, while less than 3 inches is STC. 3. BTC (Buttress Thread Coupling): Buttress thread. Available Casing Sizes: 4-1/2'', 5'', 5-1/2'', 6-5/8'', 7'', 7-5/8'', 8-5/8'', 9-5/8'', 10-3/4'', 11-3/4'', 13-3/8'', 16'', 18-5/8'', 20''. Steel Grades: J55, K55, N80-1, N80Q, L80-1, P110, L80-3CR, 9CR, 13CR, P110-13CR (Super 13CR), 28CR. Connection Types: Short round thread (STC), long round thread (LTC), buttress thread (BTC), and various high gas-tightness special threads. Production Process: Hot rolling. Product Usage: For oil well drilling. Packaging: Steel bands/steel frames, or as per customer requirements. Annual Supply Capacity: 300,000 tons. Quality Standards: We strictly adhere to the API Spec 5CT standard and the ISO 9001 international quality management system. We possess manufacturing equipment, including CNC lathes, CNC threaders, automatic flaw detectors, CNC hydrostatic testers, automatic marking machines, automatic painting and marking machines, 16-ton cranes, ultrasonic thickness gauges, and automatic feeding systems. Market Reach: While meeting domestic market demands, we serve numerous enterprises with high-quality products and have established long-term supplier relationships with countries and regions such as Saudi Arabia, the UAE, Sudan, Kuwait, and Turkey. Corporate Philosophy: Mission: Integrity, Pragmatism, Mutual Benefit, Win-Win. Management Philosophy: Based on humanized management and modern management practices, we are market-oriented, law-abiding, and committed to win-win cooperation with customers. Principle: We always adhere to the principle of "being a good person first, then doing good work." We insist on using advanced equipment and scientific management to provide high-quality products and a comprehensive marketing and service network to ensure customer satisfaction. 2. Blowdown Tubing, Blowdown Pipeline, Small Tubing for Gas Wells, 42.16mm Tubing, Thickened Tubing, Large-End Short Couplings, Rotary Short Couplings In the process of oil and natural gas extraction, blowdown tubing and blowdown pipelines are key equipment to ensure operational safety and efficiency. Our blowdown tubing and pipeline products, specifically designed for gas wells, are manufactured from high-quality materials and feature high strength, corrosion resistance, and excellent sealing properties. Contact:Bone Email:Bone@dlpoctg. , com Whatsapp/WeChat /Tel: +86-18222899636

Minimum Order: 1 bags

Product Features The blowdown tubing and blowdown pipelines are manufactured from seamless steel pipes, which offer excellent mechanical properties and corrosion resistance. The 42.16mm small tubing is designed to fit various downhole environments, while the thickened design of the small tubing enhances the strength and wear resistance of the pipe body, extending its service life. Additionally, we provide a variety of short couplings, such as largeend short couplings and rotary short couplings, to meet different connection requirements. Application Fields Blowdown tubing and blowdown pipelines are primarily used for blowdown operations in oil and natural gas wells, effectively controlling wellb pressure and preventing blowout accidents. The 42.16mm small tubing is suitable for gas well exploitation, enhancing the production efficiency of gas wells. Short couplings are used to connect tubing and casing, ensuring the sealability and stability of the pipeline system. Product Advantages Our blowdown tubing and blowdown pipeline products undergo strict quality inspection and comply with relevant standards. During the manufacturing process, we employ advanced production techniques and equipment to ensure the quality and performance of the products. Moreover, we offer comprehensive aftersales services to address any issues customers may encounter during use. Tubing Specifications: 1.05'', 1.315'', 1.66'', 1.9'', 23/8'', 2.7/8'', 31/2'', 4'', 41/2''. Steel Grades: J55, K55, N801, N80Q, L801, P110, L803CR, 9CR, 13CR, P11013CR (Super 13CR), 28CR. Connection Types: NU (Plain End), EU (Upset). Production Process: Hot rolling. Product Usage: For blowdown tubing, blowdown pipelines, small tubing for gas wells (42.16mm), thickened tubing, short couplings, largeend short couplings, rotary short couplings, oil well drilling, and various material tubing and couplings (P110SSTPCQ). Packaging: Steel bands/steel frames, or as per customer requirements. Annual Supply Capacity: 300,000 tons. Custom Processing: We can process various specifications of tubing short couplings according to customer requirements, including EU upset, double male short couplings, casing short couplings, highpressure adjustment short couplings, conversion couplings/XOver, couplings, and thread protectors. Available processing forms include PIN X PIN (double male short couplings) and PIN X BOX (finished short couplings with one male and one female end). Processing lengths range from 2 feet (ft) to 20 feet (ft); end forms available include EUE (upset) and NUE (nonupset). Quality Standards: We strictly adhere to API Spec 5CT and the ISO 9001 quality management system. We possess manufacturing equipment, including CNC lathes, CNC threaders, automatic flaw detectors, CNC hydrostatic testers, automatic marking machines, automatic painting and marking machines, 16ton cranes, ultrasonic thickness gauges, and automatic feeding systems. Market Reach: While meeting domestic market demands, we serve numerous enterprises with highquality products and have established longterm supplier relationships with countries and regions such as Saudi Arabia, the UAE, Sudan, Kuwait, and Turkey. Corporate Philosophy: Mission: Integrity, Pragmatism, Mutual Benefit, WinWin. Management Philosophy: Based on humanized management and modern management practices, we are marketoriented, lawabiding, and committed to winwin cooperation with customers. Principle: We always adhere to the principle of "being a good person first, then doing good work." We insist on using advanced equipment and scientific management to provide highquality products and a comprehensive marketing and service network to ensure customer satisfaction. We look forward to working together with you to achieve greater success! Contact:Bone Email:Bone@dlpoctg.com , Whatsapp/WeChat /Tel: +86-18222899636

Minimum Order: 1 bags

Double Male Short Couplings, High-Pressure Short Couplings, Tubing Thread Change Couplings, Tubing Reducing Couplings, Tubing Conversion Couplings, Oil/ Casing Threads I. Double Male Short Couplings and High-Pressure Short Couplings Product Features: Double male short couplings and high-pressure short couplings are essential connecting accessories in the oil and natural gas industry, widely used in various high-pressure and challenging downhole operations. Double male short couplings have male threads on both ends, facilitating quick connections with other pipes or equipment, and are characterized by their compact structure and reliable connection. High-pressure short couplings are specifically designed for high-pressure environments, manufactured from high-strength materials, and capable of withstanding extremely high pressures. They also feature excellent sealing performance to ensure no leakage during high-pressure operations. Application Fields: Double male short couplings and high-pressure short couplings are mainly used for pipeline connections in the drilling, extraction, and transportation processes of oil and natural gas. During drilling, they are used to connect drill pipes and other equipment to ensure smooth drilling operations. In extraction, they connect tubing and casing to ensure efficient oil and gas transmission. In transportation, they connect pipelines to ensure safe oil and gas delivery. Product Advantages: 1. High Strength and Durability: Manufactured from high-quality alloy steel, these couplings can withstand high pressure and corrosive environments. 2. Sealing Performance: Special thread designs and sealing structures ensure the tightness of the connection. 3. Multiple Specification Options: Available in various sizes and thread types to meet the personalized needs of different customers. 4. Customized Services: Customized solutions can be provided based on specific customer requirements. II. Tubing Thread Change Couplings, Tubing Reducing Couplings, and Tubing Conversion Couplings Product Features: Tubing thread change couplings, tubing reducing couplings, and tubing conversion couplings are important connecting accessories in the oil and natural gas industry, used to solve connection problems between different pipe diameters and thread types. Tubing thread change couplings can convert one type of thread to another, facilitating connections between different equipment. Tubing reducing couplings are used to connect pipes of different diameters to ensure smooth oil and gas transmission. Tubing conversion couplings are used to connect tubing with casing or other equipment, offering good compatibility and sealing performance. Application Fields: These couplings are widely used for pipeline connections in the drilling, extraction, and transportation processes of oil and natural gas. During drilling, they connect drill pipes and other equipment to ensure smooth drilling operations. In extraction, they connect tubing and casing to ensure efficient oil and gas transmission. In transportation, they connect pipelines to ensure safe oil and gas delivery. Product Advantages: 1. High Strength and Durability: Manufactured from high-quality materials, these couplings can withstand high pressure and corrosive environments. 2. Sealing Performance: Special thread designs and sealing structures ensure the tightness of the connection. 3. Multiple Specification Options: Available in various sizes and thread types to meet the personalized needs of different customers. 4. Customized Services: Customized solutions can be provided based on specific customer requirements. III. Oil/ Casing Threads Product Features: Oil/ casing threads are key connecting components in the oil and natural gas industry, and their quality and performance directly affect the safety and efficiency of oil wells. Our oil/ casing thread products are manufactured using advanced processes to ensure thread precision and strength. The thread surface is specially treated to provide excellent wear resistance and corrosion resistance. We also offer a variety of thread types, such as API standard threads and special threads, to meet different customer needs. Application Fields: Oil/ casing threads are widely used for pipeline connections in the drilling, extraction, and transportation processes of oil and natural gas. During drilling, they connect drill pipes and other equipment to ensure smooth drilling operations. In extraction, they connect tubing and casing to ensure efficient oil and gas transmission. In transportation, they connect pipelines to ensure safe oil and gas delivery. Product Advantages: 1. High Strength and Durability: Manufactured from high-quality materials, these threads can withstand high pressure and corrosive environments. 2. Sealing Performance: Special thread designs and sealing structures ensure the tightness of the connection. 3. Multiple Specification Options: Available in various sizes and thread types to meet the personalized needs of different customers. 4. Customized Services: Customized solutions can be provided based on specific customer requirements. Summary In the oil and natural gas industry, products such as double male short couplings, high-pressure short couplings, tubing thread change couplings, tubing reducing couplings, tubing conversion couplings, and oil/ casing threads are key components to ensure the safe and efficient operation of oil wells. By selecting the appropriate products and solutions, the reliability and service life of equipment can be effectively improved, providing strong support for oil extraction. Our products are manufactured using advanced processes and high- quality materials, undergo strict quality inspection, and meet relevant standards, capable of satisfying the personalized needs of different customers. We also offer professional technical support and after-sales service to address any issues customers may encounter during use. Additional Information - Oilfield Tubing Reducing Couplings 35CrMo: Available for processing in various sizes and thread types. - Tubing Couplings: Sizes range from 1.9" to 4-1/2", with thread types including EUE (upset) and NUE (non-upset). - Short Drill Pipe Conversion Couplings: Available in double male (PIN X PIN) and single male/female (PIN X BOX) configurations. - Casing Couplings: Sizes range from 4-1/2" to 20", with thread types including STC (short round thread), LTC (long round thread), and BTC (buttress thread). - Material Options: H40, J55, K55, N80, L80, C-90, C95, T95, P110, Q125, 13Cr- 80, 13Cr-110, Super 13Cr, etc. We always adhere to the principle of "being a good person first, then doing good work." We insist on using advanced equipment and scientific management to provide high-quality products. Based on a comprehensive marketing network and service system, we ensure customer satisfaction. Let's work together to achieve greater success! Contact:Bone Email:Bone@dlpoctg.com , Whatsapp/WeChat /Tel: +86-18222899636

Minimum Order: 1 bags

Oil Casing: An Essential Component in Oil Drilling Oil casing is an indispensable part of the oil drilling process. It plays a crucial role in supporting the wellbore and preventing collapse, while also providing a stable channel for the extraction of oil and gas. Currently, the common specifications of oil casing on the market range from 4-1/2 inches to 20 inches, which can meet the needs of wells with different depths and geological conditions. In the production of oil casing, the design of the thread type is particularly critical. The STC (Short Round) thread type, which is relatively short and round in shape, is an early widely used type. It is relatively simple in processing technology, but its strength and sealing performance are relatively weak. With the development of technology, the LTC (Long Round) thread type has gradually become mainstream. The LTC thread type has significant improvements in length and sealing performance, and can better adapt to high-pressure and high-temperature downhole environments. The BTC (Buttress Thread) is one of the most advanced thread types at present. Through its special trapezoidal design, it greatly improves the tensile and torsional strength of the casing, and also achieves a very high level of sealing performance. Different specifications and thread types of oil casing have their own advantages in practical applications. For example, 4-1/2 inch casing is usually used in shallow wells and small oil wells. Its smaller diameter can reduce drilling costs, and in some areas with better geological conditions, this specification of casing can also meet the extraction requirements. On the other hand, the extra-large 20-inch casing is mainly used for deep-sea and ultra-deep well extraction. They need to withstand huge formation pressures and complex geological conditions, so the requirements for the strength and sealing performance of the casing are extremely high. When selecting oil casing, users need to take into account a variety of factors such as the depth of the oil well, geological conditions, and extraction processes. For example, in oil wells containing corrosive gases, casings with anti-corrosion coatings need to be selected; in high-temperature and high-pressure oil wells, high-strength, high-sealing BTC thread type casings need to be selected. In addition, the material of the casing is also very important. Common materials include carbon steel, alloy steel, etc. Casings made of different materials have differences in performance and cost. In short, as one of the core equipment in oil extraction, the selection of the specification and thread type of oil casing has a crucial impact on the extraction efficiency and safety of the oil well. With the continuous progress of science and technology, the design and manufacturing technology of oil casing are also constantly innovating. In the future, more high-performance, high-reliability casing products will be introduced to the market, providing strong support for the sustainable development of the oil industry. Welcome to the Online Store of Tianjin Longkailai Petroleum Equipment Co., Ltd. Execution Standards: API-5CT, API-5L, API-5B, API 5D Company Products: Tubing couplings, tubing collars, thickened tubing couplings, flush joint tubing couplings, variable thread tubing couplings, extended tubing couplings, single-end threaded tubing couplings, internal thread tubing couplings, tubing connectors, variable thread tubing connectors, variable diameter tubing couplings, tubing conversion connectors, tubing coupling stock, tubing nipples, tubing short sections, thickened tubing nipples, tubing lifting nipples, double male tubing nipples, heavy-weight tubing nipples/short sections, lifting tubing nipples/short sections, variable thread tubing nipples/short sections, variable diameter tubing short sections/nipples, tubing conversion connectors, single-end threaded tubing nipples, coupling stock, thickened tubing, EUE thickened petroleum tubing, high-pressure tubing nipples, [casing short sections], [casing nipples], [double male casing short sections], [double male casing nipples], [casing variable thread couplings], [casing variable thread connectors], [external thread casing nipples/short sections], [casing conversion connectors], [high-pressure casing nipples], [casing thread protectors (cap)], [casing coupling stock], [finished casing products], casing couplings, coupling stock, short round thread casing couplings, long round casing couplings, tapered casing couplings, variable thread casing couplings, casing connectors, casing collars, variable diameter casing couplings, eccentric casing couplings, casing conversion connectors, API casing, single- end threaded casing couplings, coupling stock. Casing Specifications: 4-1/2”-20” with thread types such as STC (Short Round), LTC (Long Round), BTC (Trapezoidal Thread), etc. Tubing Specifications: 1.05”-4-1/2” with end processing forms NU (non-upset), EU (upset). Custom Processing: We can process couplings, nipples, variable thread connectors, etc., in various lengths and sizes according to order drawings. Processing Forms: Straight connection tubing nipples/connectors, PIN * PIN (double male nipples), PIN * BOX (one male one female finished nipples), BOX * PIN (one female one male finished nipples). Materials: H40, J55, K55, N80, L80, C-90, C95, T95, P110, Q125, 13Cr-80, 13Cr- 110, Super 13Cr, Nickel-based alloy tubing, etc. Drill Pipe Specifications: 2-3/8”-6-5/8”, etc. Thickening Forms: Internal thickening, external thickening, internal and external thickening. Custom-made products such as drill pipe variable thread connectors, drill pipe nipples, double male drill pipe nipples, and drill pipe conversion connectors in various lengths according to orders or drawings. Materials: E-75, X95, G105, S135, etc. Company Philosophy: We adhere to the management philosophy of people-oriented and customer-first. Based on advanced equipment and scientific management, we provide high-quality products for customers. With a complete marketing network and service system, we ensure satisfactory service for customers. Let's join hands to create a brilliant future!

Minimum Order: 1 bags

Shandong Yuanzhenghang Machinery Equipment Co., Ltd. has been plowing into the field of Fixed Rockbreaker Booms for more than 20 years, and its products are widely used in mining, metallurgy, sand and gravel aggregate and other industries with modular design, intelligent control and multi-scene adaptation as the core. The following is a detailed introduction from three aspects: technical characteristics, application scenarios, and user value: Technical characteristics: industrial-grade performance and flexible design 1. Modularized architecture and high-strength materials Modular components: the arm is composed of hydraulic pump station, rotary support system, multi-stage telescopic arm and other modules, which supports quick disassembly and function expansion, and is suitable for different working conditions. Military-grade durability: High-carbon manganese steel welded frame, combined with cushion armor design, improves impact resistance by 60%-70%, and withstands extreme temperatures (-30℃ to 120℃) and corrosive environments. 2. Intelligent control and precise operation Diversified control modes: support cab control, wireless remote control (up to 20km) and video monitoring linkage, equipped with millimeter-level positioning sensors to achieve precise crushing and material handling. Imported power system: Adopting German Rexroth hydraulic valve group and constant pressure variable pump, energy consumption is reduced by 50%-60% compared with traditional diesel equipment, and operation stability is significantly improved. 3. Multi-function expansion and customized service Multi-functional: Through the ISO standard quick-change interface, it can quickly switch 12 kinds of attachments such as hydraulic breaker hammer, clamping bucket, electromagnetic suction cup, etc., covering a wide range of tasks such as crushing, digging and handling. Flexible customization: arm length (1-20 meters), installation mode (ground fixed/rail mobile/suspended overhead) are designed according to the needs, suitable for narrow underground or open mine and other complex spaces.

YZH Static Rockbreaker Booms YZH specializes in the development and production of stationary robotic arms. Core Advantages 1. Safety and efficiency improvement Remote control realizes “human-machine separation”, reducing the risk of work injury in high-risk scenarios by 85%, with a failure rate of <2%. Equipped with high-performance hydraulic crushing hammer, the efficiency of granite processing reaches 2 cubic meters/hour, which is 400% higher than that of manual processing. 2. Remarkable economic benefits Energy consumption cost: Electric model consumes <18 degrees per hour, saving 120,000 RMB in annual operation cost compared with diesel equipment. Payback cycle: Standard model (about 370,000 RMB) can replace 8-12 person shift, and the payback cycle is reduced to 8-14 months. 3. Environmental protection and sustainability Zero tailpipe emissions from electric drive, noise <75dB, dust reduced by 90%, in line with green mine certification requirements. 4. Full-cycle service support Provide free 3D survey, customized installation plan, 48 hours arrival and 24 hours after-sales response, free maintenance during warranty period.

Minimum Order: 1 bags

Low Carbon Steel Straight Cut Tie Wire is made from high-quality low carbon steel wire Q195 (SAE1006-1008). It undergoes surface treatments such as electric galvanization, black annealing, or PVC coating, enhancing its durability and corrosion resistance. Available in various diameters ranging from BWG6 to BWG25 (0.15mm to 5.00mm), this wire meets stringent quality standards for tensile strength (350-550N/mm²) and elongation (20%-25%). Wire Rod: Q195, Q235, SAE 1006, SAE1008, SAE1010. Raw Material: Electro Galvanized Iron Wire, Black Annealed Iron Wire, PVC Coated Iron Wire Electro galvanized iron wire Production diameter range: BWG6-BWG25 0.15mm- 5.00mm. Zinc coating: Zinc coated: 8-25g/m2 Tensile strength: 350—550N/mm2 Elongation: 20%-25%< , br>Production Process:  Characteristic: The production process we use results in electro galvanized iron wire with a bright surface and good corrosion resistance.  Applications:Our electro galvanized iron wire is ideal for use in the construction industry, manufacturing, agricultural, and horticultural industries.  Construction Industry: Used for tying reinforcement bars (rebars), securing mesh, and general construction purposes. Handicrafts: Ideal for wire art, jewelry making, and other creative projects due to its flexibility and ease of use. Daily Use: Commonly used in household tasks such as gardening, bundling, and organizing. Packing: Low Carbon Steel Straight Cut Tie Wire is typically packaged: Cartons: Each coil is individually wrapped in plastic and packed in cardboard cartons for easy handling and storage. Pallets: Larger quantities are palletized to facilitate transportation and minimize damage during shipping. These packaging options ensure the wire remains clean, organized, and protected from moisture and mechanical damage during transit and storage.

TW1061T Rebar tie wire for Max twintier rb441tying gun The TW1061T Tie Wire for Max Twintier RB441T is an exceptional product designed for efficient and hassle-free tying applications.  With a compact and durable design, this tie wire is perfectly suited for various construction and manufacturing tasks. Product Description: Model:TW1061T（Double wire） Material: Q195 Low carbon steel wire  Wire Material: Electro-galvanized tie wire, Black Annealed tie wire, Polyester coated tie wire,  Stainless Steel Tie Wire, Made from high-quality materials, the TW1061T Tie Wire ensures reliability and longevity. Its sturdy construction offers great tensile strength,  enabling it to withstand rigorous use in demanding environments. Whether you are working on a large construction site or a DIY project,  this tie wire is built to deliver outstanding performance.

The 22x22 Mesh SS304 Window Insect Screen BWG 38 is a high-quality stainless steel wire mesh designed for protection against insects while allowing excellent airflow and visibility. Made from durable SS304 material, it is resistant to corrosion, rust, and deformation, making it suitable for long-term use in various environments. The fine 22x22 mesh ensures effective insect prevention, while the BWG 38 wire diameter provides strength and stability. Commonly used in residential, commercial, and industrial settings, it is ideal for windows, doors, and ventilation systems. As a trusted supplier from China, we offer reliable quality and competitive pricing for global markets. 22*22 Mesh SS304 Window Insect Screen BWG 38 Specification: Material: Stainless steel wire304 Wire Diameter: BWG38 Hole Size: 22mesh×22mesh Width: 2', 3', 4', 5'. Length: 30', 50', 100' and so on. Standard mesh size: 2' x100', 2.5'  x100', 3' x100' , 4'  x100' , 5'  x100', 1x25M, 1.2x25M, 1.5x25M.