Hunan Xiangpeng Industry & Trade Co., Ltd.
Hunan Xiangpeng Industry & Trade Co., Ltd. is a group-based enterprise which located in Chenzhou, the famous Nonferrous Metal Hometown of Province. We specialize mining investment, mining, processing and nonferrous mineral, ferroalloy metallurgy mineral import export. Hunan engaged sale fluorite ....
Address:Room 529, 5/F, Business Promotion Building, No. 73, Wuling Ave., Development Area Chenzhou Hunan 423000 China
Product/Service:Fluorspar, fluorite, graphite, calcium carbonate, hydrofluoric acid, carbon raiser, aluminium plate, aluminium tube, aluminium alloy, aluminium,Fluorspar, fluorite, graphite, calcium carbonate, hydrofluoric acid, carbon raiser, aluminium plate, aluminium tube, aluminium alloy, aluminium
Baoding Furuike Special Ceramic Products Manufacture Co., Ltd.
Baoding Furuike Special Ceramic Products Manufacture Co., Ltd. (original Win-Win Compound Material Ltd.) is a professional company which researches and manufactures high performance frictional materials. Our products are wind generator brake linings, pads, resistance materials ....
Address:Fu Chang,Baoding Hebei
Product/Service:Brake Pad,Clutch plate,Brake disc,FRK980 brake pads,Industrial brake pads,Wind turbine brake pads,Graphite thrust bearings,,,,Brake Pad,Clutch plate,Brake disc,FRK980 brake pads,Industrial brake pads,Wind turbine brake pads,Graphite thrust bearings,,,
Genesis Metallurgical Equipment (Beijing) Co., ...
We are a metallurgical engineering contracting company which is including post-processing lines, equipment import and export trade, technical service support company. After continuous development we has become set of equipment, spare parts, production auxiliary materials trade related in an ....
Address:xinyuanli, Beijing, Beijing, China
Product/Service:graphite electrode , cold rolling mill rollers, electrostatic oiler, coil sheet/plate, rubber covered roller , prebaked carbon anode,,graphite electrode , cold rolling mill rollers, electrostatic oiler, coil sheet/plate, rubber covered roller , prebaked carbon anode,
Changyi Dongli Graphite Products Co., Ltd
Our main products are graphite sheet and composite plate power. we have exported to America, England, South Korea, etc.Choose us u can a factory price offered the die-cut service customized size.If you interest in any of our products, contact me. ....
Address:No. 6, Chengli East Street, Changyi, Weifang, Shandong, China (Mainland)
Product/Service:Graphite Sheet, Graphite Composite Plate,Graphite Sheet, Graphite Composite Plate
TTC TAIWAN TRANSER CO. LTD
Taiwan trans-er Co., Ltd. was newly established on April 1997, we can made surfaces of various Metals and Plastic such as Printing, Etching, Electrocuting, Anodizing Treatment, etc.. In addition to devote ourselves incessantly improvement product quality research development new products, all our ....
Address:
Product/Service:Mobile power pack,Power bank,Wireless charger,Graphite,Name Plate,NamePlate,,,,Mobile power pack,Power bank,Wireless charger,Graphite,Name Plate,NamePlate,,,
manganese Alloy, Ferromolybdenum, Ferrotungsten
Hunan Xiangpeng Industry & Trade Co., Ltd. is a group-based enterprise which located in Chenzhou, the famous Nonferrous Metal Hometown of Province. We specialize mining investment, mining, processing and nonferrous mineral, ferroalloy metallurgy mineral import export. engaged sale fluorite lumps, ....
Address:Room 529, 5/F, Business Promotion Building, No. 73, Wuling Ave., Development Area, Chenzhou City, Hunan Province, P. R. China
Product/Service:Fluorspar, Fluorite, Graphite, Calcium Carbonate, Hydrofluoric Acid, Carbon Raiser, Aluminium Plate, Aluminium Tube, Aluminium Alloy Extruded Tube, Aluminium Rod, Ferromanganese Alloy, Silicon Metal, Silicon,Fluorspar, Fluorite, Graphite, Calcium Carbonate, Hydrofluoric Acid, Carbon Raiser, Aluminium Plate, Aluminium Tube, Aluminium Alloy Extruded Tube, Aluminium Rod, Ferromanganese Alloy, Silicon Metal, Silicon
Chun Do Co.,Ltd.
1. Graphite powder    A. Crude Ore : Min. FC 80    B. Min. 80 mesh, FC 99    C. 325 mesh, Min. FC 85.
Address:Room No. 507, 9-1, Sa-Dong Chung-Gu Incheon Korea
Product/Service:Graphite powder, Nickel Plate,Graphite powder, Nickel Plate
Haimen Xianfeng Carbon Industry Co., Ltd.
Haimen Xianfeng Carbon Industry Co., Ltd. is a famous enterprise with long history, specializing in electric carbon. We enjoying convenient transportation, Jiangsu Province the east, Yangtze River south, Nantong airport west, and fishing port named Lvsi north. Adhering to "well-produced, ....
Address:No.8 Weimin Village Baochang Town
Product/Service:Carbon Brush,Auto Brush,Motor Brush,Graphite Rod,Carbon Plate,carbon brush for power tool,carbon brush for power tool,carbon brush for vacumm motor,copper sliding flak,graphite products,Brush holder,carbon brush for auto mobile,,,,Carbon Brush,Auto Brush,Motor Brush,Graphite Rod,Carbon Plate,carbon brush for power tool,carbon brush for power tool,carbon brush for vacumm motor,copper sliding flak,graphite products,Brush holder,carbon brush for auto mobile,,,
WUXI HAOTIAN TEXTILE CO., LTD.
We are specializing in developing, manufacturing, and marketing of top qualities various spare parts components for dyeing finishing machine.   Our main products Pin Plate (Bar), Brush Wheel, Graphite Lubricating Board, Synthetic Parts, Clip, Holder (Block), Chain, Cut ....
Address:JINGYI, WUXI, JIANGSU, China
Product/Service:pin plate, clip, pin bar, chain, color pump, chuck, graphite bar,,pin plate, clip, pin bar, chain, color pump, chuck, graphite bar,
Shenzhen City Jia Rifeng Tai Electronic Technology Co., Ltd.
Shenzhen Jia RiFeng Tai Electronic Technology Co., Ltd. was founded in 2010, a total investment of more than 1000000 yuan. is professional committed to the domestic and foreign electronic thermal insulation materials high-tech enterprises. The company located New District Longhua City, convenient ....
Address:
Product/Service:The high thermal conductivity of silicon film,Thermal conductivity of silicon adhesive plaster,Thermal conductivity of graphite,Thermal conductivity of ceramic plate,Ferrite film,Silica gel heating film,thermal conductivity encapsulants,Thermal conductivity of graphite,Thermal grease,Thermal conductive silicone rubber cap,Magnetic ferrite piece,Thermal conductivity of silicon adhesive plaster,Ther,The high thermal conductivity of silicon film,Thermal conductivity of silicon adhesive plaster,Thermal conductivity of graphite,Thermal conductivity of ceramic plate,Ferrite film,Silica gel heating film,thermal conductivity encapsulants,Thermal conductivity of graphite,Thermal grease,Thermal conductive silicone rubber cap,Magnetic ferrite piece,Thermal conductivity of silicon adhesive plaster,Ther
Hunan Fu Qiang Special Ceramic Manufacturing Co., Ltd.
FU QIANG,established in 1964, original from Liling Physical & Chemical Porcelain Factory. Covering floor space of more than 40,000 square meters, over 500 employees and up to 40 junior senior technicians. Being association unit Chinese Mechanical Engineering Society Ceramics Professional ....
Address:Sunjiawan Industry Park, Liling City, Hunan Province, China
Product/Service:Ceramic Crucible Serials,Laboratory Porcelainwares,Electronic Ceramics,Project Ceramics,Melting Ceramics,Alumina:Crucible,Pipe,Tube,Rod Etc.,Alumina/ALN/BeO/Zirconia Plate Substrate,Zirconia:Crucible,Tube,Rod Etc.,Laboratory Porcelainware Serials,Electric & Electronic Ceramics Serials,SiC,RBSiC,SiSiC Crucible,Tube,Plate,Ball Etc.,Graphite:Tube,Pipe,Rod,Crucible Serials,Chemical Ceramic Raw Materia,Ceramic Crucible Serials,Laboratory Porcelainwares,Electronic Ceramics,Project Ceramics,Melting Ceramics,Alumina:Crucible,Pipe,Tube,Rod Etc.,Alumina/ALN/BeO/Zirconia Plate Substrate,Zirconia:Crucible,Tube,Rod Etc.,Laboratory Porcelainware Serials,Electric & Electronic Ceramics Serials,SiC,RBSiC,SiSiC Crucible,Tube,Plate,Ball Etc.,Graphite:Tube,Pipe,Rod,Crucible Serials,Chemical Ceramic Raw Materia
Hunan Xiangpeng Industry & Trade Co., Ltd
Hunan Xiangpeng Industry & Trade Co., Ltd. is a group-based enterprise which located in Chenzhou, the famous Nonferrous Metal Hometown of Province. We specialize mining investment, mining, processing and nonferrous mineral, ferroalloy metallurgy mineral import export. engaged sale fluorite lumps, ....
Address:Room 529, 5/F, Business Promotion Building, No. 73, Wuling Ave., Development Area, Chenzhou City, Hu, Chenzhou, Hunan, China
Product/Service:fluorspar, fluorite, graphite, calcium carbonate, hydrofluoric acid, carbon raiser, aluminium plate, aluminium tube, aluminium alloy extruded tube, aluminium rod, ferromanganese alloy, silicon metal, silicon-manganese alloy, ferromolybdenum, ferrotungsten,Graphite,Hot Products,Hydrofluoric Acid,Fluorspar,,fluorspar, fluorite, graphite, calcium carbonate, hydrofluoric acid, carbon raiser, aluminium plate, aluminium tube, aluminium alloy extruded tube, aluminium rod, ferromanganese alloy, silicon metal, silicon-manganese alloy, ferromolybdenum, ferrotungsten,Graphite,Hot Products,Hydrofluoric Acid,Fluorspar,
Shanghai Kessen Ceramics Co., Ltd.
Shanghai Kessen Ceramics Co., Ltd. is one of world-leading and advanced ceramic material companies in China, integrating the design, manufacture marketing high-tech ceramics. was founded more than 20 years, we specialize Alumina products, Zirconia Magnesia Silicon Nitride products products. We have ....
Address:28# No605 Road Jia'an,Jiading
Product/Service:alumina crucible,crucible,graphite crucible,ceramic parts,tube,silicon carbide plate,silicon nitride pipe,Agate mortar,CAO crucible,magnesia powder,zirconium crucible,ceramic substrate,honeycomb ceramic,Crucible,zirconia rod,fused silica tube,Alumina rod,Boron nitride crucible,quartz crucible,alumina crucible,MgO crucible,graphite crucible,silicon carbide crucible,zirconia crucible,structure ceram,alumina crucible,crucible,graphite crucible,ceramic parts,tube,silicon carbide plate,silicon nitride pipe,Agate mortar,CAO crucible,magnesia powder,zirconium crucible,ceramic substrate,honeycomb ceramic,Crucible,zirconia rod,fused silica tube,Alumina rod,Boron nitride crucible,quartz crucible,alumina crucible,MgO crucible,graphite crucible,silicon carbide crucible,zirconia crucible,structure ceram
Shanghai Hongfeng Graphite Products Co.,LTD
The expert in the graphite Bi-polar plate for fuel cells , pioneer plates industrialization?    SHF began to engage field 2003 and succeed R&D super thin which cut down volume weight of stack dramatically with excellent performance stable application, especially very competitive cost ....
Address:No.588-86 Zhangliantang Road, LianTang Industrial Park, Qingpu District.. Shanghai Shanghai 201716 China
Product/Service:Graphite, Fuel-cell, Bipolar-Plate,Graphite, Fuel-cell, Bipolar-Plate
Shenyang Dingjiu Trading Co., Ltd.
Shenyang Dingjiu Trading Co., Ltd (Shenyang for short hereafter) is a comprehensive import and export trading company, founded in 2011 located the oriental "Ruhr" ---- city, Liaoning province. In order to serve customers better, our company has built team consisting of sales personnel with rich ....
Address:No.113 Nanjingbei Street
Product/Service:Tabular Corundum,Metallurgy,mining equipment,Slag pot,Retaining ring,graphite,turbine casing,heat treatment equipment,refractory,runner hub,Electric heating water bag,bronze tube,Thick-walled roller,Bronze rod,Cored wire,Thick steel plate,CaSi corec wire,crusher,,,,Tabular Corundum,Metallurgy,mining equipment,Slag pot,Retaining ring,graphite,turbine casing,heat treatment equipment,refractory,runner hub,Electric heating water bag,bronze tube,Thick-walled roller,Bronze rod,Cored wire,Thick steel plate,CaSi corec wire,crusher,,,
Jiaxing Blossom Import & Export Co., Ltd.
Jiaxing Blossom Import & Export Co., Ltd is a fast growing enterprise specialized in the export of oil-less bearings, metal stamping parts, machined fasteners, trolley luggage carts etc. We now have 4 direct factories named Jiashan Jiesheng Oilless Bearing, Guangtong Precision Machinery, Mason ....
Address:No.978 South Hexing Road
Product/Service:Oilless Bearings,Metal Stampings,Bronze Bushings,Metal Machinings,Trolley Handles,Oilless Bearings,Metal-POM Bushings,Metal-PTFE Bushings,Bimetal Bushings,Bronze Bushing with Graphite,Bronze Bushings,Plate/Strip/Sheet for Bushings/Bearings,Powder Metallurgy Bushings,Ball retainer Bearings,Needle Roller Bearings,Engineering Plastic Bearings,Metal Stampings,Stamping Parts,Spring Clips,Channel Spring,Oilless Bearings,Metal Stampings,Bronze Bushings,Metal Machinings,Trolley Handles,Oilless Bearings,Metal-POM Bushings,Metal-PTFE Bushings,Bimetal Bushings,Bronze Bushing with Graphite,Bronze Bushings,Plate/Strip/Sheet for Bushings/Bearings,Powder Metallurgy Bushings,Ball retainer Bearings,Needle Roller Bearings,Engineering Plastic Bearings,Metal Stampings,Stamping Parts,Spring Clips,Channel Spring
Qingdao Yosion Labtech Co.,Ltd
QINGDAO YOSION LABTECH CO., LTD. is a laboratory service provider which devotes to R.
Address:No.506 South Shanghai Road,Huangdao District(Jiaonan),Qingdao City,Shangdong,China
Product/Service:Minerals and Metallurgical Laboratory Consumables、Clay Crucibles、Porcelain Crucibles、Alumina Crucibles、Zirconia Crucibles、Silicon Carbide Crucibles、Graphite Crucibles、Quartz Crucibles、Cement Cupels、Bone Ash Cupels、Bone Ash Cement Cupels、Magnesia Cupels、Cement Bullion Blocks、Bone Ash Bullion Blocks、Bone Ash Cement Bullion Blocks、Magnesia Bullion Blocks、Fluxes、Litharge、Customer's Recipe、Fire Assay Appliance、Fire Assay Tools、Pot Bench、Knock Up Bench、Pot Loader、Pouring Trolley、Pot Tray、Pot Tong、Cupel Cooling Rack、Cupel Fork、Furnace Rake、Furnace Shovel、Pouring Mould、Fire Assay Equipments、Automated Flux Dispenser、Blender、Hydraulic Aerial Platform、Fusion Furnace、Cupellation Furnace、Calcining Furnace、Carbon Ashing Furnace、Roasting Furnace、Drying Oven、Automated Fusion System、Automated Fire Assay System、Intelligent Modular Laboratories 、Container Laboratories、Sample Preparation Container Laboratories、Chemical Analysis Container Laboratories、Environment Detection Container Laboratories、Automated Laboratories、Automated Fire Assay Laboratories、Automated Sampling and Preparation Laboratories、Rocklabs Products、Standard Equipments、Combo Systems、Mechanised Sample Preparation Systems、Automated Sample Preparation Systems、Container Labs、Reference Materials、Parts And Consumables、BOYD Elite、BIG BOYD Crusher、Gravity Gold Concentrator、Hydraulic Crusher、Pulverisers、Rotating Sample Dividers、BOYD Rotating Sample Divider RSD、Continuous Ring Mill、Smart BOYD Rotating Sample Divider、Smart BOYD Linear Sample Divider 、AP200 Systems、Timan Systems、Automated Batch Mill、AP300 Systems、AP1000 R Systems、Tropicana systems、Fire Assay Container Laboratories、Sample Preparation Container Laboratories、Carbon Heads、Chrome Heads、Agate Heads、Tungsten Carbide Heads、 Zirconia Heads、Sampling and Preparation Systems、Samplers、Cross Belt Sampling Systems、Linear Cross Stream Samplers、Probe Samplers、Mid-Belt Samplers、Belt End Samplers、Gravity Chute Samplers、Grain Sampling Systems、Slurry Sampling Systems、Wastepaper Samplers、Customized Samplers、Sample Preparation Equipments、Jaw Crushers、Roll Crushers、Disc Mills、Ring Mills、Pulverisers、Pressure Filters、Drying Ovens、Rotary Sample Dividers、Sieve Shakers、Bottle Rollers、Laboratory Deducting Systems、Pulse Dust Collectors、Mobile Dust Collectors、Maritime Monitoring Products、IMSBC Code Tester、TML Insert Tester、TML Plate Tester、Reposed Angle Dumping Box Tester、Auto Horizontal Tester、Customized Tester、,Minerals and Metallurgical Laboratory Consumables、Clay Crucibles、Porcelain Crucibles、Alumina Crucibles、Zirconia Crucibles、Silicon Carbide Crucibles、Graphite Crucibles、Quartz Crucibles、Cement Cupels、Bone Ash Cupels、Bone Ash Cement Cupels、Magnesia Cupels、Cement Bullion Blocks、Bone Ash Bullion Blocks、Bone Ash Cement Bullion Blocks、Magnesia Bullion Blocks、Fluxes、Litharge、Customer's Recipe、Fire Assay Appliance、Fire Assay Tools、Pot Bench、Knock Up Bench、Pot Loader、Pouring Trolley、Pot Tray、Pot Tong、Cupel Cooling Rack、Cupel Fork、Furnace Rake、Furnace Shovel、Pouring Mould、Fire Assay Equipments、Automated Flux Dispenser、Blender、Hydraulic Aerial Platform、Fusion Furnace、Cupellation Furnace、Calcining Furnace、Carbon Ashing Furnace、Roasting Furnace、Drying Oven、Automated Fusion System、Automated Fire Assay System、Intelligent Modular Laboratories 、Container Laboratories、Sample Preparation Container Laboratories、Chemical Analysis Container Laboratories、Environment Detection Container Laboratories、Automated Laboratories、Automated Fire Assay Laboratories、Automated Sampling and Preparation Laboratories、Rocklabs Products、Standard Equipments、Combo Systems、Mechanised Sample Preparation Systems、Automated Sample Preparation Systems、Container Labs、Reference Materials、Parts And Consumables、BOYD Elite、BIG BOYD Crusher、Gravity Gold Concentrator、Hydraulic Crusher、Pulverisers、Rotating Sample Dividers、BOYD Rotating Sample Divider RSD、Continuous Ring Mill、Smart BOYD Rotating Sample Divider、Smart BOYD Linear Sample Divider 、AP200 Systems、Timan Systems、Automated Batch Mill、AP300 Systems、AP1000 R Systems、Tropicana systems、Fire Assay Container Laboratories、Sample Preparation Container Laboratories、Carbon Heads、Chrome Heads、Agate Heads、Tungsten Carbide Heads、 Zirconia Heads、Sampling and Preparation Systems、Samplers、Cross Belt Sampling Systems、Linear Cross Stream Samplers、Probe Samplers、Mid-Belt Samplers、Belt End Samplers、Gravity Chute Samplers、Grain Sampling Systems、Slurry Sampling Systems、Wastepaper Samplers、Customized Samplers、Sample Preparation Equipments、Jaw Crushers、Roll Crushers、Disc Mills、Ring Mills、Pulverisers、Pressure Filters、Drying Ovens、Rotary Sample Dividers、Sieve Shakers、Bottle Rollers、Laboratory Deducting Systems、Pulse Dust Collectors、Mobile Dust Collectors、Maritime Monitoring Products、IMSBC Code Tester、TML Insert Tester、TML Plate Tester、Reposed Angle Dumping Box Tester、Auto Horizontal Tester、Customized Tester、
ABB CBC
We are a metallurgical engineering contracting company which is including post-processing lines, equipment import and export trade, technical service support company. After continuous development we has become set of equipment, spare parts, production auxiliary materials trade related in an ....
Address:xinyuanli NO.16, Beijing, Beijing, China
Product/Service:graphite electrode, coil sheet/plate , prebaked carbon anode , electrostatic oiler , roll, rubber covered roller,,graphite electrode, coil sheet/plate , prebaked carbon anode , electrostatic oiler , roll, rubber covered roller,
Long-Faith Group
We have already became a group company who has overed 10 subsidiary companies, plants and trading companies over 2, 000 employees. Our focused industries include manufacturing, trade, technology research, financial services. With the concept of "customers as foundation growth", we provides an ....
Address:7 / F. , Kin On Commercial Building, 49-51 Jervois Street, Sheung Wan, Hongkong
Product/Service:Metal, Steel, Solar Wind Energy, Solar Power System, Solar Street Lamp, Solar Panel, Wind-Driven Generator, Vessel , Steel Wire Rod,Ferro Chrome,Ferro Manganese,Graphite Electrode,Silicon Manganese,Metal Silicon,Tempered Glass,Laminated Glass,Float Glass,Bulk Powder Goods Tanker / Material Supply Wagon,Pitch Wagon,Chemical Liquid Wagon,Sewage Fecal Sucking Truck,Concrete Mixing Carrier,High-Altitude Operation Truck,Flat Semi-Trailer,Liquefied Gas Wagon,Aluminium Cast Coil,Wooden Casket / Coffin,Metal Casket / Coffin,Paper Casket,Wood Veneer Casket,Seamless Steel Pipes,Metal Roofing Material,Bolivian Magnesium Fire Wall,Sound Absorption Ceiling,Mineral Fiber Ceilings,Aluminium Board / Sheet / Plate,Aluminium Ceiling,Honeycomb Composite Panel,PVC Gypsum Ceiling Board,Fire-Proof Paper Surface Plasterboard,,Metal, Steel, Solar Wind Energy, Solar Power System, Solar Street Lamp, Solar Panel, Wind-Driven Generator, Vessel , Steel Wire Rod,Ferro Chrome,Ferro Manganese,Graphite Electrode,Silicon Manganese,Metal Silicon,Tempered Glass,Laminated Glass,Float Glass,Bulk Powder Goods Tanker / Material Supply Wagon,Pitch Wagon,Chemical Liquid Wagon,Sewage Fecal Sucking Truck,Concrete Mixing Carrier,High-Altitude Operation Truck,Flat Semi-Trailer,Liquefied Gas Wagon,Aluminium Cast Coil,Wooden Casket / Coffin,Metal Casket / Coffin,Paper Casket,Wood Veneer Casket,Seamless Steel Pipes,Metal Roofing Material,Bolivian Magnesium Fire Wall,Sound Absorption Ceiling,Mineral Fiber Ceilings,Aluminium Board / Sheet / Plate,Aluminium Ceiling,Honeycomb Composite Panel,PVC Gypsum Ceiling Board,Fire-Proof Paper Surface Plasterboard,
Ningbo Paul Friction Material Co., Ltd
Ningbo Paul Friction Material Co., Ltd (Shaan Xi Succeed Trading Ltd), is a professional manufacturer of friction products, material , products equipment and other automobile parts such as Tensioner Bearing, Water Pump Clutch Release Bearing etc. We can supply all kinds best quality firction bearing ....
Address:Rm 12 D,168 Baizhang Road, Ningbo, Ningbo, Zhejiang, China
Product/Service:friction material,Potassium Titanate Whisker K2Ti6O13 for Friction Material,E-Glass Fiber Chopped Strand for Friction Material,Cypriot preheating (Glow Blug),Carbon Fiber Reinforced Paper-Based Brake Lining,Carbon Fiber Reinforced Paper-based Friction Disc,Composite Rock Fiber For Friction Material,Flake Graphite,Powdered NBR,Back Plate with Wire Mesh for Brake Pad,Carbon Reinforced Paper Based Friction Material,,friction material,Potassium Titanate Whisker K2Ti6O13 for Friction Material,E-Glass Fiber Chopped Strand for Friction Material,Cypriot preheating (Glow Blug),Carbon Fiber Reinforced Paper-Based Brake Lining,Carbon Fiber Reinforced Paper-based Friction Disc,Composite Rock Fiber For Friction Material,Flake Graphite,Powdered NBR,Back Plate with Wire Mesh for Brake Pad,Carbon Reinforced Paper Based Friction Material,