Electronics & Electrical

Cobalt Metal for Sale Cobalt is a shiny steel-gray metal, relatively hard and brittle, ferromagnetic, heated to 1150℃ magnetic disappear. The combined valence of cobalt is 2 and 3. It does not interact with water at room temperature and is stable in humid air. It is oxidized to CoO when heated to more than 300℃ in the air, and burned into Co3O4 when white hot. The fine cobalt metal minor powder produced by hydrogen reduction can spontaneously ignite into cobalt oxide in air. Specification of Cobalt Metal Chemical Composition Co:99.95 C: 0.005 S<0.001 Mn:0.00038 Fe:0.0049 Ni:0.002 Cu:0.005 As:<0.0003 Pb:0.001 Zn:0.00083 Si<0.001 Cd:0.0003 Mg:0.00081 P<0.001 Al<0.001 Sn<0.0003 Sb<0.0003 Bi<0.0003 Application of Cobalt Metal Cobalt metal is mainly used to make alloys. Cobalt-based alloy is the general term for an alloy made of cobalt and chromium, tungsten, iron, and nickel. The wear resistance and machinability of the tool steel with a certain amount of cobalt can be significantly improved. Starlite carbide with cobalt-50 or more will not lose its original hardness even if heated to 1000℃. Today, this kind of carbide has become the most important material used between gold-cutting tools and aluminum. Production Process of Cobalt Metal The methods of extracting cobalt from cobalt-containing materials can be divided into full fire process, full wet process and combined fire and wet process. Modern cobalt extraction mostly uses a combined process. (1) Full fire process. It was widely used before the 1940s, and now only the Panda cobalt plant in Zaire uses electric furnace to melt copper and cobalt alloys. (2) Full wet process. It mainly includes the pressurized acid leaching, ammonia leaching, sulfuric acid leaching, nitric acid leaching and chlorination leaching of various materials containing cobalt. (3) Joint process. It can be roughly divided into two cases: one is to use sulfation roasting (copper and cobalt concentrate, pyrite), reduction roasting (laterite ore), arsenic removal roasting (arsenic and cobalt concentrate) and other simple fire treatment, and then leaching with acid or ammonia solution; The other is in the process of copper, nickel, zinc and other metals smelting process, cobalt enrichment as an intermediate, and then wet treatment. Due to the complexity of cobalt extraction materials, there is no "standard" or traditional process for cobalt metallurgy. However, no matter what process is used, the final production of cobalt metal generally adopts wet process, which is a major feature of cobalt metallurgy. The production of metallic cobalt from intermediate products containing cobalt obtained by various processes is usually done by drilling electrolysis or hydrogen reduction. Features of Cobalt Metal 01. There are 13 isotopes of cobalt, but only 59Co is found in nature. The artificially produced isotope 60Co has a wide range of uses. 02. The stable crystal shape of cobalt at room temperature is hexagonal dense packing, while the stable structure above 673K is face-centered cubic. 03. Cobalt is a ferromagnetic substance, similar to iron and nickel in hardness, tensile strength, mechanical properties, thermodynamic properties and electrochemical behavior. If you want to know more kinds of refractory metals, please visit our website.

Chromium Metal for Sale Chrome, white, generally exists in the form of chromium iron compounds in the nature, the iron black or dark brown, block shape, dot, lenticular, ribbon, etc. Chromium is a very versatile metal. Chromium is a silver-white metal that is refractory (melting point 1800℃) and has a specific gravity of 7.1, about the same as iron. Chromium is the hardest metal! Chromium is usually brittle because it contains hydrogen or traces of oxides. Extremely pure chromium is not brittle and malleable. Contact us for minor metal prices! Specification of Chromium Metal Metal Chromium Lump / Cr Lmup Grade Chemical Composition % Cr Fe Si Al Cu C S P Pb Sn Sb Bi As N H O ≧ ≦ JCr99.2 99.2 0.25 0.25 0.1 0.003 0.01 0.01 0.005 0.0005 0.0005 0.0008 0.0005 0.001 0.01 0.005 0.2 JCr99-A 99 0.3 0.25 0.3 0.005 0.01 0.01 0.005 0.0005 0.001 0.001 0.0005 0.001 0.02 0.005 0.3 JCr99-B 99 0.4 0.3 0.3 0.01 0.02 0.02 0.01 0.0005 0.001 0.001 0.001 0.001 0.05 0.01 0.5 JCr98.5 98.5 0.5 0.4 0.5 0.01 0.03 0.02 0.01 0.0005 0.001 0.001 0.001 0.001 0.05 0.01 0.5 JCr98 98 0.8 0.4 0.8 0.02 0.05 0.03 0.01 0.001 0.001 0.001 0.001 0.001 -- -- -- Application of Chromium Metal Chromite has a melting point as high as 1900 ℃-2500 ℃, it retains volume at high temperatures, and with any slag unresponsive. So as refractory materials, chromium can be to used for furnaces and non-ferrous metal smelting furnace lining. Chromium is one of the world's most of hard metal. Chromium is often mixed into steel to make a hard and corrosion-resistant alloy. Most of the world's chromium, are used to produce various kinds of alloy. Stainless steel contains more than 12% chromium (some contain 13% chromium and 8% nickel). Stainless steel has excellent toughness and mechanical strength. Production Process of Chromium Metal The method of producing electrolytic chromium from electrolytic chromium monoammonium and alum aqueous solution was reported many times from 1946 to 1950. The semi-industrial test was completed and the production technology of electrolytic chromium was established. In 1932, a. e. van Arkel reported that high purity chromium (Cr99.99%) was obtained by thermal decomposition of cr iodide for special use. China began to develop chromium metal in 1958. Jinzhou ferroalloy Plant was built into China thermite Chromium Metal Production Plant on the basis of semi-industrial experiments in the early 1960s. In order to reduce the chromium damage and improve the chromium recovery rate, the method of chromium hydroxide was used to produce chromium oxide. In 1959, electrolytic chromium was produced by chromium-ammonium alum aqueous electrolysis method in Jilin Ferroalloy Factory. Features of Chromium Metal 01. Chromium is a brittle metal can not be used as a metal material alone, but with iron, nickel, cobalt, titanium, aluminum, copper and other components of the alloy, it becomes a thermal resistance, thermal strength, wear resistance and special properties of engineering materials. 02. Chromium metal is used as an alloying agent in the production of various nickel or cobalt-based superalloys, titanium alloys, aluminum-based alloys, resistance alloys, and copper alloys. 03. Some are used to produce stainless steel and heat-resistant steel. These materials are widely used in aviation, aerospace, nuclear reactor, automobile, shipbuilding, chemical, military and other industries. As a refractory metal company, we can offer kinds of related products for sale, if you have needs, please contact us.

A LED filament light bulb is an LED lamp that mimics a typical incandescent light bulb with visible filaments for aesthetic and lighting distribution reasons while utilizing light-emitting diodes, which have a high efficiency (LEDs). TOPSTAR Filament LED bulbs have many advantages. High lumen output efficiency is a feature. similar to an incandescent lamp's sparkling light effect. Lower maintenance expenses and longer lifespan. Energy savings of up to 85% when compared to incandescent lighting. providing almost the same amount of light as an incandescent bulb. By putting each product through testing for the best performance and safety, TOPSTAR upholds the highest standards for all of our goods. For optimal eye comfort, these lights give instantaneous strong light without buzzing or flickering. A National Enterprise Technology Center and a state-of-the-art laboratory are also features of TOPSTAR. Because of its excellent technological capabilities, TOPSTAR can create and produce items of the highest caliber for our clients. Types of Filament LED Lamp Filaments A19 Bulb Filaments A21 Bulb Filaments A23 Bulb Filaments ST19 Bulb Filaments ST64 Bulb Filaments G25 Bulb Filaments G16.5 Bulb Filament Candle Bulb  How Do LED Filament Bulbs Work? 01 The light source structure of the LED filament bulb The light source structure of the LED filament bulb is mainly composed of multiple parts, including the connection parts of the lamp holder, the base, the driving power supply, and the lamp beads. In the course of work, LED filament bulbs are mainly based on stone substrates, and then supplemented by highly transparent lampshades. 02 LED Filament Light Bulb Gets Heat When the current of the LED filament light bulb passes through the filament (tungsten filament, the melting point is more than 3000 degrees Celsius), heat is generated. The spiral filament continuously gathers heat, making the temperature of the filament above 2000 degrees Celsius. The iron can shine like a light. The higher the temperature of the filament, the brighter the light emitted.) How to Choose Filament LED Bulbs? LED lights are unquestionably more environmentally friendly and energy- efficient than conventional incandescent lighting. Since their widespread use over the past ten years, LED lights have been shown to provide an increasing number of benefits. Currently, specialists are concentrating on a few particular LED applications, such as how to increase the beam angle of LED chips. Previously, LED bulbs might have a beam angle of 120° or even 180°, but it is very challenging to have a greater beam angle. Traditional lamps have a 360° beam angle, which means they spread light in all directions. It's really wonderful if LED lights can radiate light in all directions at once. Therefore, using an LED filament bulb as a replacement for conventional lamps is a really good idea. Because LED filament bulbs employ 360° LED FILAMENTS rather than LED BEADS as its light source, they produce 360° all-directional lighting. The gold wires that connect the LED CHIPS in the LED filament package, which is mounted on a rectangular substrate, allow for electric conduction. To get ideal LED filaments that emit 360° lights, phosphor coating will be applied to the surface of the LEDs. If you are looking for a reliable led lighting company, please choose us, and we will be your best partner.

Minimum Order: 3000

LED DECO B35/C35 filament candle light bulbs, advanced automatic production, direct manufacture from China, high quality promise and long lifespan warranty. Specification of Filament Candle Bulb Bulb Power Lumen CRI Equivelence Lamp Base Beam Angle Lifespan Dimmable Certification B35/C35 2.5W 200lm 90 25W E12/E26 290° 15000 Yes UL/ES/CEC/FCC/DOE/ROHS B35/C35 2.5W 200lm 90 25W E12/E26 290° 15000 Yes UL/ES/CEC/FCC/DOE/ROHS B35/C35 3.5W 300lm 90 40W E12/E26 290° 15000 Yes UL/ES/CEC/FCC/DOE/ROHS B35/C35 3.5W 300lm 90 40W E12/E26 290° 15000 Yes UL/ES/CEC/FCC/DOE/ROHS B35/C35 5.5W 500lm 90 60W E12/E26 290° 15000 Yes UL/ES/CEC/FCC/DOE/ROHS B35/C35 5.5W 500lm 90 60W E12/E26 290° 15000 Yes UL/ES/CEC/FCC/DOE/ROHS What Are Filament Bulbs Used For? LED DECO B35/C35 Filament Bulbs work well with a variety of applications, such as ceiling lights, wall lights, vanity lights, kitchen lights, closet lights, porch light fixtures, etc, also can be seperately installation in a E12 & E26 base for lighting. As a professional China led lighting factory, by green health lighting products, Topstar Lighting is a led disk light manufacturer integrating research and development, production and sales.

Minimum Order: 3000

TOPSTAR LED+ Dusk to Dawn Bulbs, Sunlight Sensors, Soft White, Automatic On/Off Light Sensing Bulb, A19, PAR38 Light Bulbs Specification of Dusk to Dawn Auto Sensor Light Bulb A19+PAR38 Item Voltage Power Lumen PF Dimmable CRI Base Life PAR38 Dusk to Dawn 120V 15 1200 0.5 NO 80 E26 15,000H A19 Dusk to Dawn 120V 9 800 0.5 NO 80 E26 15,000H A19 Dusk to Dawn 120V 15 1600 0.5 NO 80 E26 15,000H What Are A19 Dusk to Dawn Used For? This bulb is damp rated and dust-tight to provide reliable bright light in any weather. It is suitable for outdoor applications such as covered driveways, patios, porches, decks or in string light decorations. Now the price of led light wholesale is reasonable, if you have needs, please contact us.

Minimum Order: 3000

Wholesale Aluminum Foil Adhesive Tape Feature: Alu Foil as backing, coated with hot melt adhesive. High tack and good temperature. Application: Widely used for sealing and joining and HVAC industry. Specification of Aluminum Foil Tape With Hot Melt Product Adhesive Carrier Thickness Peel Adhesion Tensile Strength Finished roll Size (μm) (N/in) ASTM D-3330(oz/in) (N/in) ASTM D- 3759(lb/in) A115 Hot Melt 12 ≥12 43 ≥17 4 48mmx25m 48mmx50m A118 Hot Melt 17 ≥12 43 ≥20 5 48mmx25m 48mmx50m A120 Hot Melt 20 ≥14 54 ≥22 5 48mmx25m 48mmx50m A125 Hot Melt 22 ≥16 58 ≥25 6 48mmx25m 48mmx50m A130 Hot Melt 26 ≥16 58 ≥30 7 48mmx25m 48mmx50m A135 Hot Melt 32 ≥19 69 ≥35 8 48mmx25m 48mmx50m A140 Hot Melt 36 ≥19 69 ≥40 9 48mmx25m 48mmx50m Applications of Aluminum Foil Tape With Hot Melt Aluminum Foil Tape With Hot Melt can be used for a variety of applications, such as pipe sealing, joining, and HVAC industries. It is perfect for sealing joints and seams against moisture and vapor, insulation, and patching hot and cold air ducts, sealing aluminum and fiberglass duct boards, and sealing and patching FSK systems. As an adhesive products company, we will provide more kinds of related products for sale, anything you need, please contact us.

Minimum Order: 15000

Dusk to Dawn Sensor+2CCT Selectable Filaments Bulbs with an extra photocell adaptor or socket. The sensor bulb with built in photocell sensor parts will detect the light intensity, Automatic turn On at night, turn off in daytime, Solve your problem at forgetting turn off light when left home in daytime and no light when back home in the evening. Specification of Dusk to Dawn Sensor+2CCT Selectable Filaments Bulbs Item Voltage Power Lumen PF Dimmable CRI Base Life A19-Filaments Dusk to Dawn + 2CCT 120V 8 800 0.7 NO 80 E26 15,000H A19-Filaments Dusk to Dawn + 2CCT 120V 13 1600 0.7 NO 80 E26 15,000H A19-Filaments Dusk to Dawn + 2CCT 120V 8 800 0.7 NO 90 E26 15,000H A19-Filaments Dusk to Dawn + 2CCT 120V 13 1500 0.7 NO 90 E26 15,000H What Are A19-Filaments Dusk Till Dawn LED Bulb + 2CCT Used For? Invisible built-in light sensor parts, you will not see any extra components, nice look and same shape as traditional bulb, built-in sensor parts not request any installation direction to detect light, more convenient used for different fixture: porch garage patio hallway, front door light. As one of led lighting manufacturers, we can offer sorts of decorative led light bulbs for sale, if you are interested, please leave us a message.

Minimum Order: 3000

TOPSTAR Motion Sensor Light Bulb, it is maximize energy saving,Premium Quality and More Powerful. Specification of Dusk to Dawn+PIR Sensor A21 and PAR38 Plastic Lamp Item Voltage Power Lumen Beam Angle CRI Base Life Battery A21 120V 8W 760lm 180° 80 E26 15000H Item Voltage Power CRI Beam Angle Life Cap Certification Motion PAR38 1200lm 15W 80 40° 15,000h E26 UL Motion PAR38 1100lm 14W 90,R9＞50 40° 15,000h E26 CE C What Are The PIR Motion Detector Light Bulb Used For? Wide Application: The PIR motion detector dusk to dawn lamp bulb widely used corridors, channel, patio, warehouse, bathroom, toilet, basement, stairway, hallway, porch, garage, driveway. As one of led lighting suppliers, we can offer sorts of led smart light for sale, if you are interested, please leave us a message.

Minimum Order: 3000

The dual spectrum Led grow light bulbs have two gears, which are switched by a dip switch. Topstar has selected high quality and efficient led and high-end chips. They can speed up photosynthesis in plants. Under the irradiation of these lamps, the plants will grow healthily, blossom and yield fruit well. The heat dissipation of these led grow light bulbs is efficient, enable the grow light bulbs working fine and long-lasting. They can be used for 25000 hours. These products meet the certification requirements. Topstar guarantee the quality. Types of Dual Spectrum LED Grow Light Dual Spectrum LED Grow Light Bulb A19+, 120V, 9W, E26  Dual Spectrum LED Grow Light Bulb BR30, 120V, 9W, E26  Dual Spectrum LED Grow Light Bulb PAR38, 120V, 28W, E26  The wave length range that plants can absorb and utilize is mainly in 400- 800nm. This dual spectrum grow light is a mixture of red and white light. These can promote photosynthesis in plants better and faster, and then plants will grow faster and healthier. Dual Spectrum VS LED Grow Light Dual spectrum LED grow light bulbs offer one more option than led grow light bulbs. The another stall of dual spectrum LED grow light bulbs is more suitable for flowers and fruits indoor. The PPE and PPF of dual spectrum LED grow light A19+ and BR30 is the same as LED grow light. As a led lighting company, we can offer kinds of new led lighting for sale, if you have needs, please contact us.

Minimum Order: 3000

Several Color Temperature Selectable: Easy CCT selection with the slider switch, simply try out the various color temperatures to suit the look and feel of your room, then lock in your selection during the installation. 3-5 color temperature selectable, no need to worry about what color temperature to buy, eliminates the hassle of returning or exchange products due to inappropriate color temperature An Ideal Choice for Household Lighting: Can be used as floor lamps, recessed downlights, pendant lamps in different scenarios such as reading room, bed room and living room. UL: We uphold the highest standards for all our products by testing each product for optimal performance and safety. Our bulbs provide instant bright light and no buzzing or flickering for maximum eye comfort. Energy Saving: Lower your energy consumption instantly (up to 85%) by converting to LED! Topstar CCT light bulb are a sustainable choice by offering a longer lifetime than traditional bulbs (halogen, incandescent, fluorescent) and reduced relamping costs. Types of CCT Lamp Bulb 5CCT Selectable A19 Plastic Bulb 5CCT selectable A19 bulb& 3CCT selectable BR30 &3CCT selectable PAR 38, E26 Medium base, UL/ES/CEC/T20 Certified.  3CCT Selectable BR30 Plastic Bulb Three-tone CCT changeable, energy saver, high-performance, high quality promise and long lifespan warranty.  3CCT PAR38 Plastic Bulb This CCT-select light bulb can be used to replace a standard 150-Watt incandescent or halogen bulb. Use these long lasting bulbs in fixtures anywhere. The motion detection feature is a great addition to any space.  How To Choose A CCT Bulb? Colour temperature generally ranges from 2700-3300K (warm) to 3300-5300 (cool) – and 6500K is daylight. Cool white can be better for concentrating or seeing detail. Warm white light is considered good for relaxing. you can simply switch the button on the light to choose the colors you need before installation. How CCT Bulbs Work? Choose color temperature to tune your bulb to your preferred color setting. Easy CCT selection with the slider switch on the product. Simply try out the various color temperatures to suit the look and feel of your room, then lock in your selection during the installation. As a led lighting factory, we can offer kinds of led light bulbs for sale, if you have needs, please contact us.

Minimum Order: 3000

Model Number:UIYBDC6466A1T2 Frequency Range:1.0~2.0GHz Bandwidth:Full Insertion Loss:0.6dB Isolation:17dB VSWR:1.4 Forwar , d Power:100W Reverse Power:100W Connector Type:TAB Temperature:+10~+70°C Dimension:64 , *66*26mm

Minimum Order: 1 bags

Poster LED display Let shop window brighter and more clear, poster display holder box Let customers experience the scenery outside window, Poster box and make each store capture every selling point. Standard display,fixed size and display size.Simple control,plug and play,simple and deft style,fulfill high effective work.Randomly applied to each indoor scene,flexible and varied,a trully moving adverting medium.Arc line and metal texture,bonding craft and design beauty. With the strong support of yipleo Poster Series Transparent LED Display, Retail store changed itself and became a good advertising space in itself.Effectively enhance the customer gathering ability of the store, explore the most extensive potential customers, and improve the customer retention time. Screen Size 700*1000 Application Scenarios Glass wall, large indoor space Post Screen Series Transparency: 82% Brightness: 5000cd/㎡ Viewing Angle: 160° Depth: 37mm Dimensions (unit : mm) Standardization: standard screen, fixed size and display area.Minimalism: simple operation Settings, plug and play, simple and light style, meet the efficiency of work.Standardization: Standard display, fixed size and display size.Simple: simple control, plug and play, simple and deft style, fulfill high effective work.Process design: arc line and metal texture, bonding craft and design beauty.Freestyle: randomly applied to each indoor scene, flexible and varied, a trully moving advertising medium. Specifications Process design: radian line and metal sense, integration of process beauty and design beauty.Freestyle: randomly applied to indoor scenes, flexible and truly mobile advertising media..Pixel Pitch(mm): P2.87X5.74, P3.9X7.8. Module Size (mm): 700X1000, 2000X1500, 2000X2500 Model P3 -A Pixel Pitch (mm) 3.9 x 7.8 Pixel Density (dot/㎡) 32768 Module size (mm) 745X1175X37 Module Resolution (dot) 178 X 128 LED Type SMD 3 in 1 Brightness (cd/㎡) 5000 Transparency 82% Viewing Angle 160° Grey Leve 14bits Scan Mode 1/4 Refresh Rate (Hz) 3840 Frame Frequency (Hz) 60 Avg.Power Consumption (W/㎡) 240 Max.Power Consumption (W/㎡) 800 Maintenance Back IP IP42 Working Temp -20~50℃ Weight (kg/㎡) 25 As one of poster display suppliers, we can offer kinds of poster display systems for sale, if you are interested, please leave us a message. XMOZU As a global leading corporation in LED commercial display solutions, creates an era without receiving a card for LED display, committing to manufacturing “XMOZU Series" products, providing a real sense of civilian all in one LED display.

Minimum Order: 10 long tons

Large Format Display In the indoor environment of airports, high-speed rail stations, subway stations, convention centers, hotel theaters, urban and commercial complexes and other large-scale construction and commercial spaces, the high-definition, colorful, holographic visual effects of LED intelligent transparent screens can not only create excellent space atmosphere, but also with the architectural and interior style of perfect coordination, integration, so that the media create more visual impact, in all levels of cities large-scale construction and commercial space has a wide range of application prospects. Now the price of large screen rental is reasonable, if you have needs to buy large LED display, large LED screen, please leave us a message. As a led display manufacturer, we will do our best to meet all the needs of customers.

Minimum Order: 10 long tons

Jade Series Transparent Glass Window LED Display, see through led screen, without any change of architectural appearance and transparency of the glass wall, creating the open view in large space indoors, LED video wall for sale and make advertising emerge into architecture and life. Glass window display Jade series transparent led screen's outstanding features: smart control by mobile APP, wireless data transmission, screen+data cloud+APP, Wifi connection. High refresh rate in the industry, minimum pixel pitch(able to mass production) 3mm, 3840HZ refresh rate. High contrast ratio 1500:1, stunning color, dynamic image and eye-catching. Super transparent, more than 85% transparency, the highest transparency in led screen industry. Simple to use, no complicated installation, no steel structure, fast positioning and installation, convenient and quick maintenance. New configuration, the shape innovation of static glass, new screen displaying, new advertising type. Screen Size 1000*500, 500*500 Application Scenarios Glass wall, glass window, large indoor space Jade Screen Series Transparency: 87% Brightness: 5500cd/㎡ Viewing Angle: 120° Depth: 21mm Dimensions (unit : mm) Modular: DIY design, free combination of arbitrary size glass screen. Simple: no complex installation, no steel structure, quick positioning, quick installation, convenient and quick maintenance. Brilliant colors: high contrast 1500: 1, dynamic image, attracting eyeball. New form: change the form of static glass, new screen display, new advertising methods. Specifications Modular, minimalist, colorful; New form: new screen LED display, new advertising mode. Pixel Pitch(mm): 3.9X7.8, 7.8X7.8, 10.4X10.4; Module Size (mm): 1000(W) X 500(H), 500(W) X 500(H); 1000X500 500X500 1000X500 500X500 Model J3 J10 0 0 0 0 0 Pixel Pitch (mm) 3.9 x 7.8 10.4 x 10.4 Pixel Density (dot/㎡) 32768 9216 Module Resolution (dot) 256 X 64 256 X 64 96 X 48 48X 48 LED Type SMD 3 in 1 SMD 3 in 1 Brightness (cd/㎡) 5500 5000 Transparency 82% 87% Viewing Angle 120 120 Grey Leve 14bits 14bits Scan Mode 1/4 1/4 Refresh Rate (Hz) 3840 3840 Frame Frequency (Hz) 60 60 Avg.Power Consumption (W/㎡) 240 300 Max.Power Consumption (W/㎡) 800 800 Maintenance Back Back IP IP42 IP42 Working Temp -20~50℃ -20~50℃ Weight (kg/㎡) 14 17 13 16 As one of LED wall manufacturers, we can offer kinds of related products for sale, if you are interested, please contact us.

Minimum Order: 10 long tons