Minerals & MetalsHome > Offers to Sell > Minerals & Metals
8/5/21 3:38 GMT
Reticles
The precision custom optical glass reticle is generally installed on the focal plane of the right eyepiece of the telescope. It is a thin glass with reticle dense lines engraved on the surface of the pole book. In theory, this thin glass also participates in imaging and extends the focal length of the objective lens, which will have more or less influence on the length of the right eyepiece. BRD Optical is one of the few companies producing custom glass reticles because the reticles require extremely high cleanliness. Any tiny dust will produce large black spots during observation. At the same time, the accuracy of the installation position of the custom glass reticle is extremely high. Therefore, try not to disassemble it. If it is disassembled, it must be as it is recovery. We also provide etched reticle optics such as etched reticle 1x sight. Custom Glass Reticles Applications The glass reticle is generally installed on the focal plane of the right eyepiece of the telescope or scope. It is made of a thin glass with a very thin surface engraved with the reticle dense line. In theory, this thin glass is also involved in imaging, extending The focal length of the objective lens will more or less affect the length of the right eyepiece. The glass reticle has extremely high requirements for cleanliness, and any tiny dust will produce large black spots during observation, and the installation position of the reticle requires extremely high precision. The glass reticle generally adopts chromium plating and etching to form the danger of the glass reticle. The line adopts chromium plating, and the luminous type is filled with titanium trioxide or zinc oxide powder after etching. The glass reticle produced by Jiujing has an accuracy of +/-0.002m and is widely used in medical and military fields. For special-purpose reticles, Jiujiang can customize anti-reflection, waterproof, oleophobic, and anti-glare coatings for customers. Custom Glass Reticles FAQs Can A Custom Reticle Be Made?Can A Custom Reticle Be Made? Yes, we can. We will process the template according to the CAD drawings provided by the customer. What Are The Main Processing Methods?What Are The Main Processing Methods? There are mainly two methods of glass reticle etching and photolithography. The correct method will be selected according to the customer's drawing requirements and actual results. BRD optical co. Ltd is a professional precision reticle company, if you want to know more about optical reticle and reflex sight reticle, please contact us. Minimum Order: 5 dozens Contact:
Phone: Fax: Email: BRD Optical
No.399 Bocai Road, High-Tech Industrial Development Area, Changchun, Jilin, China 130000 Jilin 130000 China 7/28/21 8:39 GMT
White Refractory Ceramic Crucibles Graphite Melting Crucible For Drying Bur
Ceramic Crucibles, Graphite Crucibles, Refractory Crucibles,For Drying, Burning, Melting Or Heating We offer a range of crucibles suitable for calcinating and melting various alloys.The main quality of a crucible is its ability to withstand temperatures above the melting temperatures of the alloys deposited by metallurgists without altering or polluting the molten metal. In some cases, when a crucible is brought to these very high temperatures, it must be strong enough to withstand being moved for the casting of parts (bronze foundry for example). Crucibles (ceramic crucibles, graphite crucibles, refractory crucibles) are containers for drying, burning, melting or heating various substances for use in metallurgy, glass industry, growing crystals, laboratory equipment, various high- temperature equipment. Our team is available to help you choose the crucible and the material that best meet your requirements. Related Data Main component 99%Al2O3 S-SiC ZrO2 Si3N4 Physical Property Density g/cm3 3.9 3.1 6 3.2 Water Absorption % 0 0.1 0 0.1 Sinter Temperature °C 1700 2200 1500 1800 Mechanical Property Rockwell Hardness HV 1700 2200 1300 1400 Bend Strength kgf/mm2 3500 4000 9000 7000 Compression Intensity Kgf/mm2 30000 20000 20000 23000 Thermal Property Maximum working temperature °C 1500 1600 1300 1400 thermal expansion coefficient 0-1000°C /°C 8.0*10-6 4.1*10-6(0-500°C) 9.5*10-6 2.0*10-6(0-500°C) 5.2*10-6(500-1000°C) 4.0*10-6(500-1000°C) Thermal Shock resistance T(°C) 200 250 300 400-500 Thermal Conductivity W/m.k(25°C 31 100 3 25 300°C) 16 100 3 25 Electrical Property Resisting rate of Volume ◎.cm 20°C >1012 106-108 >1010 >1011 100°C 1012-1013 – – >1011 300°C >1012 – – >1011 Insulation Breakdown Intensity KV/mm 18 semiconductor 9 17.7 Dielectric Constant (1 MHz) (E) 10 – 29 7 Dielectric Dissipation (tg o) 0.4*10-3 – – – Technical Ceramics offers crucibles from the following materials: aluminum oxide (corundum, alundum, high-alumina ceramics); zirconia; silicon carbide; graphite and graphite-containing materials; graphite with pyrolytic coating; pyrolytic boron nitride; quartz ceramics and quartz glass; refractory ceramics; refractory composite materials; White Refractory Ceramic Crucibles Graphite Melting Crucible For Drying Burning 0 White Refractory Ceramic Crucibles Graphite Melting Crucible For Drying Burning 1 Contact:
Phone: Fax: Email: HENAN ZG INDUSTRIAL PRODUCTS CO.,LTD
No. 26, Dongqing Street, High-tech Zone, Zhengzhou ,Henan, China Zhengzhou China 7/28/21 3:44 GMT
2.5m Aluminium Tile Trim Finishing Strip Tile Edge Trim For Wooden Floor
aluminum Profile for wooden floor Finishing strip tile edge trim Name aluminium l shaped trim, bathroom tile edge trim, t section tile trim, l shaped tile trim, outside tile corner trim, metal edge trim for ceramic tile Material Aluminium Alloy 6063 Right Angle Size 15mm / 2.5cm, other size 10mm, 20mm, 25mm, 30mm Length 2.5m or 2.7m, can be customized Surface Treatment Anodised, Polishing, powder coating, mill finish Color Silver or other color can be made,such as Shiny Gold, Matt Gold, Rose Gold,Champagne, Glossy Bronze Feature Easy install, Smooth surface, Grace surface Package Stick transparent film every piece, 100 pieces in 1 carton Application Tile Protection Tile Decoration, Floor, Aluminium Tile Trim Profile, marble, UV board, Window Installation Introduce Using silicone glue / titebond paste to bond with other materials such as brick, stone, wood, glass. Finishing strip: The wooden floor is paved and needs to be finished. It is often used on wooden floors to pave window sills, split-level edges, stair step edges, outdoor doors and entrance doors. 2.5m Aluminium Tile Trim Finishing Strip Tile Edge Trim For Wooden Floor 0 There is another way to use it at the junction of the wooden floor and the wall where skirting is not installed. For example, if a custom-made wardrobe is made, and there is no wooden floor under the wardrobe, then the wooden floor can only be used with edge trim at the foot of the wardrobe. If it appears in places other than the top, it is a buckle or bead. The function of the buckle is: the floor has a seam here, so it needs to be covered. In addition, in order to prevent the height difference from tripping people, the edge of the floor is pressed with a bead to make a slope, which is often found at the junction of the kitchen and the dining room. The layering is to compromise with the floor Good floor and good construction, wooden floors should not cause any problems in the whole house. The so-called whole house paving means to start with one wall, one floor to join the other, cut the floor when encountering the wall, and finish the floor like a jigsaw puzzle. Contact:
Phone: Fax: Email: Foshan Homedeco Metal Co., Ltd.
No. 1-8, Ruyi Road, Xiabai, Luocun, Shishan Town, Nanhai District, Foshan City, Guangdong Province, Foshan China 7/27/21 7:59 GMT
Outdoor Silver Brushed ACP Aluminium Composite Panel 1220mm
Flat aluminium cladding panels Quick Details Place of Origin: Hunan, China Brand Name: HUABOND Model Number: H-A128 Color: Customized Surface Treatment: Anodized/PVDF/Powder Thickness: 2mm, 3mm, 4mm-16mm Customized Aluminum Alloy: 1100H24, 3003H24, 5005H24 Material: Aluminum Sheet 1100/3003/5005/5052/6061 Supply Ability: 400000 Square Meter/ Per Month Shape: Round, Square, Triangle, Customized Size: According your detail drawings Color: Solid color, Metallic color, Wooden/Marble Color, etc. Packaging Details: Wooden box, Carton Port: Shanghai Specifications: 1) Standard: According to GB/ T 17748-1999 standard 2) Material: A) Front: Aluminum alloy sheet coated with fluorocarbon resin (PVDF) and polyester resin (PE) roasting painting B) Core: Nontoxic polyethylene C) Back: Aluminum alloy sheet coated with polyester resin painting D) Surface finish: Treated with PVDF and PE resin rolling roasting Coating E) Surface coating thickness: 30um F) Aluminum alloy sheet thickness: 0.1mm, 0.12mm, 0.15mm, 0.2mm, 0.3mm, 0.4mm, 0.45mm, 0.5mm 3) Dimensions: A) Thickness: 2mm 3mm, 4mm 5mm 6mm B) Width: 1000mm 1220mm 1250mm 1500mm 1570mm .2000mm C) Length: 2440mm, 3200mm, 4000mm, 5000mm (max: 6 meter) D) Weight: 5.5kg / sqm based on 4mm thickness E) Standard size: 1220 x 2440mm F) Normal color: 20 kinds for Normal aluminum composite panel 7 kinds for granite grain panel Non-standard sizes and special colors are available, according to customers' requests Characteristics: 1) Super peeling strength 2) Excellent surface flatness and smoothness 3) Superior weather, corrosion, pollutant resistance 4) Even coating, various colors 5) Fireproof, excellent heat and sound insulation 6) Superior impact resistance 7) Lightweight and easy to process 8) Easy to maintain Outdoor Silver Brushed ACP Aluminium Composite Panel 1220mm 0 Outdoor Silver Brushed ACP Aluminium Composite Panel 1220mm 1 Contact:
Phone: Fax: Email: Hunan Huabond Technologies Co., Ltd
Economic & Technical Development Zone, Changsha, Hunan, China Changsha China 7/27/21 7:14 GMT
Anti Skid Q345 Welded Steel Grating 1250mm Width Hot Dip Galvanized
Welded Steel Grating Introduction Stair is steel plate steel grid plate used in the platform of a stair, according to the installation, general with welding and bolt type, fixed directly welded to the keel, do not need to add the step plate lateral plate, a relatively economic and durable but not easy to disassemble, bolt fixed step plate on both sides need to thicken the side panel, punchs a hole on the side panel. Step plate installation is directly fixed by the bolt, can be repeated recycling. Welded Steel Grating Specifications: Span: Total span. Width: Panel width. Bearing Bars: Load carrying main element. Bearing Bars Spacing: Measure from center-to-center of the bearing bars in 1/16″ increments. Standard spacing for industrial flooring is 19/16″(1-3/16″) on center. Other popular spacings are 15/16″, 11/16″, 1/2″, and 7/16″ on center. Bearing Bars Depth: Ranges from 3/4″ to 7″ depending on anticipated loads. Bearing Bars Thickness: Ranges from 1/8″ to 1/2″ depending on anticipated loads. Cross Bars: Used to Secure the position of bearing bars. Cross Bar Spacing: Measured from center-to-center of cross bars in 1″ increments. Standard spacing is 4″ or 2″ on center. 1, T325/30/100 step plate: suitable for width greater than 500mm not greater than 900mm 2, T255/30/100 step plate: suitable for width of more than 800mm not more than 1500mm Welded Steel Grating Application: Industrial platform, fence, passageway floor, railway bridge side road, high altitude tower platform, drainage ditch cover, manhole cover, road barrier, stereo parking lot, institutions, schools, factories, enterprises, sports ground, garden villa fence, can also be used as the window of the house, balcony guardrail, highway, railway guardrail, etc. Contact:
Phone: Fax: Email: Anping Jiongcan Hardware Mesh Products Co., Ltd
Daziwen Town Industrial Zone, Anping County, Hengshui City, Hebei Province Hengshui China 7/26/21 11:34 GMT
AC and Fridge Compressors Scrap for sale in Bulk
We are top supplier of AC and Fridge Compressor Scrap. Get back to us with your inquiry and we will gladly reply you as soon as possible. We have the following products available; AC and fridge compressors scrap Copper scrap (cable, wire, mixed) Copper cathodes, copper bars Aluminum scrap 6063, aluminum extrusion 6063, aluminum wheels alloys Aluminum Ingot ADC12 Stainless steel 304, stainless steel 316 HMS Scrap 1&2 Used Rails Lead battery scrap Discounts are currently being offered. Get in touch with us now Please visit our website and contact us for more details. You can call, text or email us anytime using our contact details on our contact page or website; and one of our consultants will get back to you asap. Where to buy ac and fridge compressors. Our team is equipped with certified quality control agents, traders, marketers, manufacturers and also the best you can find ” research & development agents to acknowledge that we are providing items & service recently approved and recommended for ourselves and our planet. Buy the best product from us now and get a good surprise especially if you are based in the United Kingdom, Turkey or Germany. Therefore, you should always have in mind that LT10P LTD will always be available 24/24 and 7/7 so as to make sure your buying experience with us remain the best ever felt before. Best quality compressor scrap for sale. Minimum Order: 500 Contact:
Phone: Fax: Email: LT10P LTD - Large Trading Portal Ltd
38 Crown Rd Enfield EN1 1TH United Kingdom 7/26/21 9:57 GMT
Electrical Commercial Enclosure Roll Forming Machine
Wall mount electrical commercial enclosure & distribution board enclosure projector solution Product specifications: height adjustable 300-1200mm, depth adjustable 150- 400mm. Electrical enclosure Production machine technical parameters Item Technology parameter Material Material c , old-roll strip,galvanized steel strip Thickness 1.0-1.5mm(base on 1.5mm design, when T.1mm effect alittle not good as 1.5mm) Coil Inner Ф360—Ф510 Process F , orm Speed 0-13m/min Length Not limit Quality Length Precision L≤1000mm:±0.5㎜ Stra , ight, Deflection L≤1000mm,Bend no more than 1mm;Deflection no more than 2mm Forming size As per design Electrical distribution board roll forming machine production line process Uncoiler→ Straightening→Servo feeder→Hydraulic device→ Guide device → Roll forming machine →Bending device Distribution box production line technology explaination This production line is equipment for production of distribution boxes. The strip coil to be processed is manually placed on the uncoiler, and then corrected and tensioned. After leveling, it enters the hydraulic pre-punching and punching notch, and is sent to the forming machine by the guide device to form. Under the frictional damping action of the forming roller and pressure roller, after entering the bending part at a linear speed of 0-13m, the box is cut and bent as required, and then manually packed away. This production line produces 2-3 enclosures per minute. the production box quantity speed according to different product specifications. Electrical Distribution Board Enclosure Roll Forming Machine https://www.superdamc.com Minimum Order: 1 bags Contact:
Phone: Fax: Email: Shenzhen Superda Machine Co., Ltd
No.95 Ainan Road, Longdong se comunican, área de longgang, Shenzhen 518118 China SOURCE: Import-Export Bulletin Board (https://www.imexbb.com/)
© 1996-2026 IMEXBB.com. All rights reserved.
|
|
||||||||||||||||||||||||||||||||||