Results for

Chemical tubing - China

61 Companies

14 Products

CHANGZHOU TONGCHUANG TUBE INDUSTRY CO.,LTD

China

Changzhou Tongchuang Tube Industry Co., Ltd is a professional seamless steel pipe manufacturing in China for many years, supply kinds of seamless steel tubes with good quality and competitive price.The main standards are API, ASTM/ASME, EN, DIN, JIS BS, GB etc, the size ranges OD: 6-168mm and WT: 1-25mm can be ordered.We have a great geographical advantage.Our production capacity is up to 50.000tons per year .The company has the certification of ISO9001: 2008 issued by CCSC, ISO1400I: 2004 environment management system, API5L, API5CT.In the early 2010, we were certificated by SINOPEC and become one of their regular suppliers. Our main product scope has Medium-Low Pressure Boiler Tubes , Vehicle Tubes , Cold Rolled Precision Tubes , Shock Absorber Tubes, Bicycle Connector Tube, Chemical Fertilizer Tubes, Heat Exchanger Tubes, Petroleum Cracking Tubes , Chains Tubes , Bearing Steel Tube, Marine Tubes , alloy steel tubes ...
CANGZHOU SANQING INDUSTRY AND TRADE CO., LTD.

China

Cangzhou Sanqing Industry and Trade Co., Ltd. is located in Juguantun Science and Technology Development Zone, the east suburb of Cangzhou City. Our factory covers an area of one hundred thousand square meters with modem workshops and high standard manufacturing machines. We have nice scene with a 300, 000-square-meter garden. Our company has attained ISO9001 quality system certification and CE certification and is granted as "Famous and Excellent Enterprise" by Quality Technology Supervision Bureau of Hebei Province. We can provide machines that make plastic products, including medical packing, chemical packing, foodstuff packing, cosmetic packing, automobile, motorcycle, plastic toys, plastic tube, tool boxes, chemical barrel and so on. The suitable raw material including PE, PP, PVC, HDPE, LDPE, PVDC, EVOH etc. Then our machines can blow bottles from 5ml to 500L. So we have the ability to comply with all your requirement for plastic products. We really appreciate our honorable clients
F&C SENSING TECHNOLOGY (HUNAN) CO., LTD.

China

F&C Sensing Technology (Hunan) Co., Ltd (F&C) has been specialized in making autocontrol elements including optical fiber tubes, fiber optic sensors, fiber amplifiers, optoelectronic switches, proximity switches, tag sensors, magnetic switches, DIN-rail power supply, area sensors and photo sensors. Various types of our current sensors have been widely used in industrial machinery & equipment and automatic assembly lines of plastic, light industry, shoemaking industry, textiles, chemical industry, petroleum, tobacco, food industry, metallurgy and electric power field, for the purpose of spacing, positioning, detection, automatic counting, speed measurement, automatic protection, signal transmission, protection, isolation, etc. At present, our products are mainly sold domestically. And we also work as the OEM/ODM of well-known foreign enterprises, with the sensor output increasing day by day. At present, the products of F&C are well-designed and manufactured by product components of world famous manufacturers. We also established branches in Taiwan, Dongguan, etc. We will always adhere to our business philosophy of providing “top quality products and professional services”.

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SHAANXI RONGYUAN INDUSTRIAL DEVELOPMENT CO.LTD

China

Shaanxi Rongyuan Industrial Development Co., ltd. an ISO Certified titanium materials manufacturer, specialized dealing in producing and selling titanium materials and mill products. main products: titanium bar/rod, titanium wire, titanium tube/pipe, titanium sheet, tItanium coil, titanium fasteners, titanium flange, other titanium products and fabrication, which are widely used in Oil, Gas, petro, marine, airspace, Chemical, medical, electroplating, jewlery and other area. have well exported many countries, with 3.1 certificate.

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NINGGUO BST THERMAL PRODUCTS CO.,LTD

China

NINGGUO BST THERMAL PRODUCTS CO., LTD adhere to Develop by Credit, Win Market by Quality, relying on our good management, technical strength and equipment designed by engineers. We develop different materials products, which is widely used in chemical, pharmaceutical, power, engineering machinery, metallurgy, shipbuilding, aviation, mining, vehicles and other industries. We make fire sleeve, heat reflect sleeve, aluminum corrugated tube, basalt braided sleeve, braided fiberglass sleeve, nomex braided sleeve, kevlar braided sleeve, heat wrap, removable insulation blanket, high temperature resistant fabric, heat resistant tape and so on. Especially our exclusive products - fire sleeves, are widely used in aviation. At present our products are mainly exported to France, Brazil, Australia, the United States, Japan, Germany and other countries and also widely used in many domestic areas.

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ZHEJIANG YAANG PIPE INDUSTRY CO., LIMITED

China

Zhejiang Yaang Pipe Industry Co., Limited is a professional organizer and one-stop-shop supplier for special steel, duplex steel, duplex stainless steel flanges, super duplex stainless steel flanges, stainless steel flanges, Stainless Steel Pipes, stainless steel elbow, tee, reducer, flanges, stainless steel gaskets, pipe fittings, steel pipes and tubes, Fasteners, Valves, Sanitary Services etc. in China. We have devoted to providing the best solutions of stainless materials and industrial equipment for our respected customers.We supply not only commonly used stainless steel materials(SS304/L, SS316/L, SS321), but also duplex and super duplex steel(UNSS31803, S32750, S32760, etc.), special austenite stainless 310H, 347H, 317L, 904L...Yaang products are widely used in Shipbuilding, Nuclear power, Marine engineering, Petroleum, Chemical, Mining, Sewage treatment, LNG, LPG, Natural gas and Pressure vessels and other industries. Yaang products are according to national standard GB/T12459-90, GB/T13401,
HENGTONG TUBING CO.,LTD

China

Hebei Cangzhou Hengtong Tubing is a 34-year-old manufacturer of pipe fittings for Petroleum, chemical, power, gas, metallurgy, shipbuilding and construction use, etc.He is a joint-equity enterprise integrated research, development, production, marketing and service.1. Seamless Pipes and Pipe Fittings... (Steel Pipes , Elbows, Bends, Reducers, Tees, Pipe Caps)1) Size: 1/2"-48" , welded 1/2”-72”2. Varieties: SGP, STD, SCH10—SCH160, XS, XXS.3. Standard: ANSI B16.9/16.28, ASTM, API 5L, DIN2605/2615/2616/2617, JIS P2311/2312 ASME B36.10M---1996, 4. Material: carbon steel, Low Alloy, st35.8, st35.8i, st37, st45.8, st45.8i, st52.4, stainless, etc.
JIANGSU LONGDA COPPER PIPE CO.,LTD

China

Jiangsu longda is specialized in developing , producing, and selling copper tubes, copper alloy tubes, high effective tubes and special alloy tubes, bars, plates. The main alloys are C11000, Cu-DHP(C12200), CuZn20Al2As(C68700), CuZn28Sn1As(C44300), CuNi10Fe1Mn(C70600), CuNi30Mn1Fe(C71500), CuNi30Fe2Mn2(C71640), UNSNo4400, N02200, N02201, N065600, N08800, B5, B7, etc.Our products are widely used in the fields of air conditions, refrigeration, power station, shipbuilding seawater desalination, petrochemical and chemical industries , etc. We are doing our best to make our company to be a leading tube producing base in China and world-class manufacturer mainly producing copper alloy and tubes and special alloy tubes, bars and plates.
ZHANGJIAGANG SHENGDINGYUAN PIPE-MAKING CO.,LTD

China

Zhangjiagang Shengdingyuan Pipe-Making Co., Ltd is a factory established in year 2007, up to now, the facotory has its own international brand, specialized in following products: 1.Cold drawn seamless steel tube（polished), process：quality carbon steel-cold drawn-heat treatment without oxidizatin(NBK status)-nondestructive testing. 2. Higher precision high pressure fuel pipe in diesel engine: raw material: ST35, ST37, T37.4, ST52.4 with standard of DIN2391 and EN10305-1. 3.DIN black phosphated hydraulic tube in high precision: the NBK tube surface forms a black film by imported chemical fluid, antirust oil is absorbed by the micropore to prevent from rust. 4.Tube size range: OD4xTH0.5mm-OD60xTH6mm, tolerance can reach ±0.05mm.5.Surface quality: polished without oxidization, crack, fold, scar, laminar defect.
NANTONG FAREAST GRAPHITE CHEMICAL EQUIPMENT CO. LTD

China

Fareast Graphite Chemical Equipment Co. LTD is a manufacturer of graphite chemical equipment in China. Our products main applications involve chemical, petrochemical, metal finishing, agrochemical, pharmaceutical, steel pickling, environmental protection...Typical chemical process units include graphite heat exchangers (block, shell & tube, compact), graphite hydrochloric acid (HCl) synthesis units & furnace, graphite sulfuric acid (H2SO4) dilution systems (plant, coolers), graphite falling film absorbers, graphite evaporators, graphite quencher, graphite column, graphite pumps, graphite gas scrubbers which act as a normal unit servicing various industries.The follow is our main products: Graphite Heat Exchangers, Cooler, Heater: Graphite Hydrochloride Acid, HCl Synthesis Unit, Furnace, Plant, System, Graphite Sulfuric Acid Dilution Cooler, Unit, Plant, Graphite Falling-Film Absorbers, Gas Scrubber, Graphite Quencher, Graphite Column, Tower, Graphite Lined Reactor, Graphite Evaporator

UNIKEM HOLDINGS QINGDAO CO LTD

China

We focuses on the R&D, production and marketing: MARINE CHEMICALS: Alginic Acid, Sodium Alginate, Potassium Alginate, Calcium Alginate, Ammonium Alginate, Magnesium Alginate, Propylene Glycol Alginate, refined Carrageenan, and Semirefined Carrageenan which are widely used in food, pharmaceutical, cosmetic, textile printing, welding rods, paper making and water treatment.RUBBER CHEMICALS: Accelerator(MBT, MBTS, CBS, TBBS, TMTD, TMTM, DTDM, TETD, TBZTD, NOBS, DPG, DCBS, ZDBC, ZBEC, ZDEC, ZDMC, DPTT etc), Antioxidant(TMQ, IPPD, 6PPD etc), Anti-scorching Agent (PVI), which are widely used in tyres, tubes, cables, latex and shoes processing.
SUZHOU CITY XINLONG PLASTIC MOULD CO.,LTD

China

Suzhou City Xinlong Plastic Mould Co., Ltd. By constructing the Internet technology based on comprehensive information platform based on the concurrent engineering, the CAD/CAE/CAM system intellectualization local area network, analyzes the CAD/CAE/CAM into plastic mould development, design and manufacture of application. Our service can be classified into two categories: Extrusion Die: we have rich mechanical drawing and extrusion die design experience, and at the same time to focus on plastic liquidity and die structure optimization research, has successfully produced a series of plastic extrusion die , and they are widely used in agriculture irrigation, drainage, chemical building liquid transportation, medical equipment, such as PVC tube, PP, PE pipe, tube plastic hose PPR fiberglasss 3-layer pipes. Injection Dept: we have a group of professional plastic injection mould engineers, equipped with independent research and development department.

Product recommendations

Stainless Seamless Tube for Petrochemical / Oil&Gas

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Slot Type Filter

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CHANGSHA SOUTH TANTALUM NIOBIUM CO.,LTD

China

Changsha South Tantalum Niobium Co.，Ltd is located at the hi-tech development zone in changsha district， Hunan. It covers an area of 15，000 square metres. At present it has a staff of near 100 persons， among them over 25％ are engineering and technical personnel.Our company specializes in colored metals， for research and development， manufacture， and sale of rare metal Tantalum， Niobium， and their alloys. We have always been engaged in rare metals field for many years. With professional technological development and manufacturing ability， we have been devoting to refractory metals downstream products. The major products include ingots， plates/sheets， foils， tubes， rods， bars， wires， targets， crucibles， Ta-10W， Ta2.5W shapes metallurgical products， clad materials and downstream products (equipment) made of tantalum niobium and their alloys.The products are widely applied in various fields， such as spaceflight， aviation， chemical industry， chemical fiber， electron， and machine-making etc.
HENAN JUJIN IMPORT AND EXPORT CO.,LTD.

China

HENAN JUJIN IMPORT AND EXPORT CO., LTD is a professional international supplier of rubber chemicals from China, main products as below: rubber accelerators MBT(M)/ MBTS(DM)/CBS(CZ)/ TMTD/DPG/ MBS(NOBS, MOR)/ TBBS(NS)/ DCBS(DZ)/ZDEC(ZDC, EZ)/ZDBC(BZ)/ZDMC(PZ)/ZMBT(MZ)/TMTM(TS); rubber antioxidant TMQ(RD, TQ); Rubber Antiscorching agent PVI; Vulcanization agent DTDM used for rubber and rubber-related products in the manufacture of tires, inner tube of tires, belts, shoes, cables, tubes and other rubber products. We assure that the quality of above mentioned products and best prices for all customers.and also really Wish we will promote a long-term business in near future.
SHANGHAI BEST ALLOY CO., LTD.

China

Shanghai Best Alloy Co., Ltd. deal with stainless steel smelt and working. One and only imported VODC vacuum refining furnace is owned by our factory. We successfully produce many kinds of stainless steel and duplex including 309S, 310S, 316N, 317L, 35315, etc. Our products contains: steel billet, round steel, seamless pipe and forgeable piece, fully fulfill all customers needs from different local industry including petroleum, chemical, nuclear power, medicine, shipping, war industry, power, space flight, environment protection etc. and some produce also be exported to overseas like Europe, USA and South Asia. Our company product include: alloy, tube, forging, refractory, etc. We can provide fine quality steel, special steel and refractory product to clients.
CHANGSHA DINGXUN NEW MATERIAL CO.,LTD.

China

We are selling high quality of beryllium copper alloy (CuBe2, QBe2), with a competitive price, meet the ASTM of C17200. We offer beryllium copper alloy with different kind of shape, like plate, strip, bars, rods, tubes, sheets, wires, etc, we also provide beryllium copper as your requirement, with specific classification, shape, etc. Your inquiry will be welcome.- C17200- CuBe2- Copper Beryllium Alloy- Chemical Composition: Be: 1.8-2.0%, Pb: 0.2-0.6%, Co+Ni=0.2%, Co+Ni+FeThe high beryllium copper alloy our company researched and sold win at the base of high quality, low price, quick speed of delivery, and excellent post-selling service. Companies adhere to the integrity of management, quality service, to create maximum benefit as our business faith. Welcome customers to negotiate, establish friendship and creat a win-win future.
SHENZHEN MINGSCHIN HIGH-POLYMER TECHNOLOGY CO.,LTD

China

We are one of the biggest manufacturer of fluoroplastic(PTFE, FEP tube, PFA, PVDF wafer carrier) products in south of China. We specialise in developing, manufacturing, selling fluoroplastic products. Our company is located in Mingschin Industrial Park, Sha Jing, Bao an, Shenzhen. The factory area is almost 30000m2 . We devote to serve the industrial enterprises with comprehensive solutions in engineering materials. Our products are used throughout the Chemical Processing, Aerospace, Mechanical manufacturing device, Medical, communication equipments, home appliance and Semi-Conductor industries, etc. We sell our products to Europe, USA, Mid-Asia, etc. more than 20 countries.
SHAANXI YI HENG NON-FERROUS METALS INDUSTRIES CO., LTD

China

Shaanxi Yi Heng Non-ferrous Metals Industries Co., Ltd is one of leading manufacturers and distributors of Tungsten, Molybdenum and Titanium products in China. Our Tungsten, Molybdenum and Titanium products range falls into various forms which include powder, bar, rod, plate, sheet, tubes, wire, block, ring, etc.. Apart from processing traditional materials, we also develop new products with the help of high technologies. Relying on years of experiences, advanced technologies, quality equipments, highly efficient manufacture and standard management, we have established a comprehensive system of research, manufacture and marketing of Tungsten, Molybdenum and Titanium products, which are widely used in radiation shield, vacuum plating, illumination, metallurgy, IT, electronic, power, aviation, sports, glass, chemical and mechanical industries etc. Our products, well known for their excellent properties, have been approved by various international authoritative institutions.
FOSHAN HONSTAR ALUMINUM PRODUCTS CO., LTD

China

Foshan Honstar aluminum products Co., ltd is a highly-professional Company in China specialized in aluminum profile, aluminum extrusion, extruded aluminium profiles and aluminum finished products.We can offer the following surface treatment aluminum profiles for our customer, mill finished, Anodizing for decoration; Corrosion resistant surface in all colors; Powder coated in all RAL colors, Wood or marble grain; Paint; Mechanical polishing; Chemical burnishing; Bright dip. Products: flat bars, square bars, round bars, drawing profiles, standard profiles, industrial profiles, window and door profiles, systems for other applications, furnishing systems, public works systems, skylight systems, partition systems, louvers & light barriers systems, transport systems, mosquito nets systems, extruded tubes, aluminum tile trim profile, China aluminium profile, China aluminium extrusion, China extruded aluminium profiles, aluminum extrusion profiles, aluminum profile, aluminum section.
CHANGZHOU THE ONE PACKAGING MACHINERY CO., LTD.

China

Changzhou The One Packaging Machinery Co., Ltd. is one of the fastest growing packaging machinery company in China, that has constantly followed a path created by its own will, hard work and determination. The One Packaging is involved in research, manufacturing and marketing of packaging machines. We are specialized in packing and packaging machines including mixer, vacuum homogenizer, pump, bag packaging machine, bottling machine, filling machine, rinsing machine, capping machine, aluminium foil sealing machine, labeling machine, unscrambler, turntable, tube filling and sealing machine, counting machine, cartoning machine, monoblock filler stopper capper, production lines, and non-standard packing machine for cosmetics, pharmaceutical, chemical, hygienical, food, beverage industries.

HUBEI YULONG GROUP JINLI NEW MATERIALS CO.,LTD

China

Established in 2011, Hubei Yulong Group Jinli New Materials Co., Ltd specializes in manufacturing & exporting FRP (Fiberglass Reinforced Polymer) composite products, our main products are FRP profiles, FRP Channel , FRP Beams, FRP Round Tube , FRP Square Tube, FRP Flat Bar, FRP Angle, FRP Cable Tray, FRP Anchor Bolt, Fiber Reinforced Plastic Rod, FRP Rebar, Reinforced Plastic Mortar Pipe, and other FRP pultruded grating sheets. As substitute products of steel, this new type of composite materials are widely used in the field of civil and industry construction, public facilities, buildings, roads, highway, bridges, mines, agricultural facilities, other non-magnetic etc. Fiberglass reinforced polymer/plastic is made from high strength glass fibers along with extremely durable resin. The glass fibers impart strength to the product while the resin imparts excellent corrosion resistance properties in harsh chemical and alkaline environments. Thus they have the features of light weight
CANGZHOU MAIRUI STEEL PIPE CO., LTD

China

Cangzhou Mairui Pipe Industries Co., Ltd., who is one of the top elbow and pipe fittings companies in Hebei province, was founded in 1990, and located in "The City of China Elbow and Pipe Fittings"--Mengcun Hui Autonomous County. The company covers 100 acres, and the north is Beijing-Tianjin area, the south is Shandong province, the east is Huanghua Port, and the west is Beijing-Shanghai highway. There are more than 300 staffs, and the fixed asset is over 10 million Yuan, with the floating assets over 20 million Yuan. The company has been specializing in the pipe and elbow fittings made from Carbon steel and White steel etc, including the elbows 3-way, reducers, pipe caps, reducing pipes, Flange bushing and many other pipe fittings and steel tubes. The products have been widely used in petroleum, chemical, gas, and water conservancy industries and 90% of the products are exported to many countries in Africa, European, Australia, East Asia, Mid-east, North America, South America etc.
ZMC

China

Our company designs and manufactures industrial valves, flange, pipe fitting, tube & pipe, standard and special, for various application of fluid, pressure and temperature, for the employment in the gas, chemical, petrochemical, pharmaceutical, marine, food, oil and gas industries, power generation, steam plants, water treatment and in many other sectors. With over 30 years of experience in manufacturing valves, we offers high quality products, well proven in the filed, and can design and manufacture valves specific to the customer’s application. we aim to deliver quality products and services by incorporating proven technology solutions to achieve total customer satisfaction. mainly supply: stainless steel ball valve, cast steel valve, forged steel valve, alloy steel valve, cast steel valve, JIS Marine valve, forged steel flange, cast steel flange, seamless steel carbon steel pipe, welded pipe, butt weld fitting, camlock coupling.
CDM TITAN (SHANGHAI CDM INDUSTRY CO., LTD.)

China

CDM TITAN (Shanghai CDM Industry Co., Ltd.) is an approved ISO9001: 2008 company by UKAS and TUV. CDM had been certified to manufacturing titanium material and titanium tubes for heat exchanger and condensator etc. Many of CDM titanium tubing had been used in heat exchanger, condenser, chemical industry and oil industry. And CDM has additional products: titanium welded, seamless tube, pipe, bolt, screw, sheet, foil, bar, wire, casting, machining, clad steel plate. For more products web: www.cdmti.com.
TSISCO INDUSTRIAL LTD.

China

Tsisco Industrial Ltd., ISO 9001: 2008 certified by TUV Rheinland, a part of Tsingshan Steel group (one of the world's biggest stainless steel long products groups), are dedicated to providing worldwide industry segments the below coverages of products and solutions: - HR, HRP and HRAP wire rods; -Piping systems including pipes, tubes, valves, flanges and fittings. - HR, HRP and HRAP stainless steel bars; - ST, CD and CG bright bars; - CD wires; - AP, BA and U stainless steel welded pipes/tubes; - CD, CR, AP, and BA stainless steel seamless pipes/tubes. It is our constant mission to contribute professionally, steadily and generously to the industries of onshore and offshore oil and gas, petro chemical, nuclear and power, automotive, shipbuilding, pulp paper, instrumentation, hydraulic and pressure vessel industries while trying to be a 100-year-age company.
DALIAN XINRUILONG IMP.&EXP. TRADING CO., LTD.

China

The Global Supplier of Titanium Mill Product If you are looking for titanium metal supply, XRL Titanium is your first choice. We offer titanium plate/sheet, pipe/tubing, fittings, bar, wire, fastener, etc as standards ASTM, ASME, AMS etc. These qualify titanium productshave been widely used in chemical, medical, oil & gas, aero and general engineering industries. Custom dimension is also available.Our products are mill certifiedand are 100% traceable from mill processing through melting source to satisfy our quality control system. All materials are accompanied by test reports of chemical and mehanical properties as per standard.
HUZHOU NINGXIN NEW MATERIAL TECHNOLOGY CO., LTD.

China

HuZhou NingXin New Material Technology Ltd. professionally engaged in producing PTFE plastic products: PTFE sheets, PTFE tape, extruded rods, molded sheets, molded bars, molded tubes; skiving sheets, skiving tapes, skiving film, extruding bars and tubes, gaskets, bridge sliding blocks, braided packing and all special type components. With experienced experts, excellent manufacturing equipment and exquisite technology, we can design and manufacture all types of fillings, as well as process PTFE products according to the specific requirements of customers. Our products are mainly used in these areas: petroleum, chemical industry, meteorology, medical, electronics, machinery and so on.
BAOJI HEXINTAI METAL LIMITED COMOPANY

China

Our company is a professional production of titanium and titanium alloy materials, non-ferrous metals enterprises. Our main products are titanium rods, titanium plate, titanium tube, titanium wire, titanium target, medical titanium, titanium standard parts, titanium and other crafts in order to dilute precious metals: tungsten, molybdenum, zirconium, Tanzania, niobium, nickel rods And sheet, foil, strip and other processing products. Our products are widely used in metallurgy, electronics, medical, chemical, petroleum, pharmaceutical, and other economic fields.
SHANDONG WANDA ORGANOSILICON NEW MATERIALS CO., LTD

China

Our products including silane coupling agents, silane cross-linkers, silicone oil, silicon rubber, resin and organic fluorin chemicals are widely used in different areas like glass fibre, inorganic fillers, tire, cables, tubes, LED, rubber industry etc.. Wanda is managed under a mature and systematic mechanismwhich can offer experienced technical support as well as abundant self-supply of raw materials in upper stream chain. As a manufacturing company, we set a strict standard for environmental protection and has achieved great effect in resuing wastes and sewage.
GOLDHORSE POWDER MATERIALS CO.,LTD.

China

Product Features Symmetrical particle size, small granularity distributing margin and high tap density. Good sphericity, low impurities content, activated aluminum over 98%. Silver-gray appearance, no exterior miscellaneous items or glomeration, low moisture content, allowing long time storage Applied scope Conductive paste for solar cell; High-grade metal pigment; composites (thermal spraying composite metal powder, ceramics composite steel tube); aerospace (solid rocket propellant); chemical industry (all kinds of chemical catalyst and pesticide); metallurgical industry(aluminum thermal process metallurgy, steel making deoxidizer); shipbuilding industry (conductive coating); fire-resistance materials (steel making furnace magnesia carbon brick); new-type building materials (gas concrete foaming agent); anticorrosive materials and fireworks, etc