Production high quality petroleum coke. Extruded, baked, impregnated and graphitized under precise technical control. Applications Electrodes, anodes, cathodes, heating elements, resistors, fluxing/degassing tubes, molds, crucibles, special structural parts, etc. in metallurgy, mechanical engineering, chemical & electrochemical industry, energy management, glass & ceramics, transportation and other industries. Programmable properties Medium grain High density and high mechanical strength High thermal and chemical resistance High resistance to thermal shock Proper electrical conductivity Minimum wettability to molten metals and glass Sizeï¼? Diameter (mm) 75,100,120,150,175,200,250,300 Length (mm) 550 2200 Other diameters and lengths are available on request.
Production high quality petroleum coke. Extruded, baked, impregnated and graphitized under precise technical control. Applications Electrodes, anodes, cathodes, heating elements, resistors, fluxing/degassing tubes, molds, crucibles, special structural parts, etc. in metallurgy, mechanical engineering, chemical & electrochemical industry, energy management, glass & ceramics, transportation and other industries. Programmable properties Medium grain High density and high mechanical strength High thermal and chemical resistance High resistance to thermal shock Proper electrical conductivity Minimum wettability to molten metals and glass Size: Diameter (mm) 75,100,120,150,175,200,250,300 Length (mm) 550 2200 Other diameters and lengths are available on request.
Production high-quality petroleum coke. Extruded, baked, impregnated and graphitized under precise technical control. Applications Electrodes, anodes, cathodes, heating elements, resistors, fluxing/degassing tubes, molds, crucibles, special structural parts, etc. in metallurgy, mechanical engineering, chemical & electrochemical industry, energy management, glass & ceramics, transportation and other industries. Programmable properties Medium grain High density and high mechanical strength High thermal and chemical resistance High resistance to thermal shock Proper electrical conductivity Minimum wettability to molten metals and glass Size Diameter (mm) 75,100,120,150,175,200,250,300 Length (mm) 550 2200 Other diameters and lengths are available on request.
Ilities, and highly qualified technicians with years of machining experience to produce consistent graphite products to meet current market demands. Xrd graphite is committed to supply high quality graphite products and excellent service by treating each customer individually. The company has built an efficient cad/ cam team to develop the best method to meet all the different requirements from our customers. Machining services We provide milling, band sawing¡ê¬planning, slicing, drilling, polishing and cnc machining services. Paper packaging
Product Name Carbon Steel Wire Rods Material Q195, Q235, Q345; ASTM A53 GrA,GrB; STKM11,ST37,ST52, 16Mn,etc. Diameter 0.1MM~12MM Length in coils 5m-14m,5.8m,6m,10m-12m,12m or as customer's actual reques Standard JIS G3466, EN 10219, GB/T 3094-2000, GB/T 6728-2002 Section Shape Round Technique Hot rolled Packing Bundle, or with all kinds of colors PVC or as your requirements Surface Treatment 1. Galvanized 2. Transparent oil,anti-rust oil 3. According to clients requirement Ends Plain end MOQ 1 Tons, more quantity price will be lower Product Application 1. Fence, greenhouse, door pipe,greenhouse 2. Low pressure liquid, water, gas, oil, line pipe 3. For both indoor and outdoor the building construction 4. Widely used in scaffolding construction which is much cheaper and convenient Wire rods are mainly used as blanks for wire drawing, and can also be directly used as building materials and processed into mechanical parts. Wire rod, also known as wire rod, usually refers to small diameter round steel in coils. The diameter of the wire rod is in the range of 5-19 mm (usually 6-9 mm), and its lower limit is the minimum size of the hot rolled steel section. Wire rods are round steel with relatively small diameter. The commodity form is supplied in coils. On the construction site, the common ones are those with diameters of 6, 8, 10 and 12 mm, most of which are low carbon steel. Generally, they are not used for the main reinforcement of reinforced concrete structures, but are mainly used for making reinforcement sleeves. There are also small diameter "brick reinforcement" used in brick concrete structures. Warehouse Storage Shandong Jintuo Metal Materials Co., Ltd is located in Liaocheng City, the capital of steel tubes. It is a large enterprise specializing in the sales of carbon steel, stainless steel, galvanized color coated products, and copper and aluminum.Our company adopts a flexible business approach and management mechanism to provide good services to customers, while also considering the interests of the owner and the project, in order to ensure the quality of the project.
Product Name Carbon Steel Wire Rods Material Q195, Q235, Q345; ASTM A53 GrA,GrB; STKM11,ST37,ST52, 16Mn,etc. Diameter 0.1MM~12MM Length in coils 5m-14m,5.8m,6m,10m-12m,12m or as customer's actual reques Standard JIS G3466, EN 10219, GB/T 3094-2000, GB/T 6728-2002 Section Shape Round Technique Hot rolled Packing Bundle, or with all kinds of colors PVC or as your requirements Surface Treatment 1. Galvanized 2. Transparent oil,anti-rust oil 3. According to clients requirement Ends Plain end MOQ 1 Tons, more quantity price will be lower Product Application 1. Fence, greenhouse, door pipe,greenhouse 2. Low pressure liquid, water, gas, oil, line pipe 3. For both indoor and outdoor the building construction 4. Widely used in scaffolding construction which is much cheaper and convenient Wire rods are mainly used as blanks for wire drawing, and can also be directly used as building materials and processed into mechanical parts. Wire rod, also known as wire rod, usually refers to small diameter round steel in coils. The diameter of the wire rod is in the range of 5-19 mm (usually 6-9 mm), and its lower limit is the minimum size of the hot rolled steel section. Wire rods are round steel with relatively small diameter. The commodity form is supplied in coils. On the construction site, the common ones are those with diameters of 6, 8, 10 and 12 mm, most of which are low carbon steel. Generally, they are not used for the main reinforcement of reinforced concrete structures, but are mainly used for making reinforcement sleeves. There are also small diameter "brick reinforcement" used in brick concrete structures. Warehouse Storage Shandong Jintuo Metal Materials Co., Ltd is located in Liaocheng City, the capital of steel tubes. It is a large enterprise specializing in the sales of carbon steel, stainless steel, galvanized color coated products, and copper and aluminum.Our company adopts a flexible business approach and management mechanism to provide good services to customers, while also considering the interests of the owner and the project, in order to ensure the quality of the project Packing and shipping Our products are exported to multiple overseas countries and regions such as Europe, America, South Asia, Southeast Asia, Africa, and Latin America, and have won the trust and support of customers with excellent quality and service. During the supply process, the company can timely use sufficient funds to adjust the production variety and model of the steel plant, ensuring the use needs during the peak construction period
Product Name Carbon Steel Wire Rods Material Q195, Q235, Q345; ASTM A53 GrA,GrB; STKM11,ST37,ST52, 16Mn,etc. Diameter 0.1MM~12MM Length in coils 5m-14m,5.8m,6m,10m-12m,12m or as customer's actual reques Standard JIS G3466, EN 10219, GB/T 3094-2000, GB/T 6728-2002 Section Shape Round Technique Hot rolled Packing Bundle, or with all kinds of colors PVC or as your requirements Surface Treatment 1. Galvanized 2. Transparent oil,anti-rust oil 3. According to clients requirement Ends Plain end MOQ 1 Tons, more quantity price will be lower Product Application 1. Fence, greenhouse, door pipe,greenhouse 2. Low pressure liquid, water, gas, oil, line pipe 3. For both indoor and outdoor the building construction 4. Widely used in scaffolding construction which is much cheaper and convenient Wire rods are mainly used as blanks for wire drawing, and can also be directly used as building materials and processed into mechanical parts. Wire rod, also known as wire rod, usually refers to small diameter round steel in coils. The diameter of the wire rod is in the range of 5-19 mm (usually 6-9 mm), and its lower limit is the minimum size of the hot rolled steel section. Wire rods are round steel with relatively small diameter. The commodity form is supplied in coils. On the construction site, the common ones are those with diameters of 6, 8, 10 and 12 mm, most of which are low carbon steel. Generally, they are not used for the main reinforcement of reinforced concrete structures, but are mainly used for making reinforcement sleeves. There are also small diameter "brick reinforcement" used in brick concrete structures. Product Name Carbon Steel Wire Rods Material Q195, Q235, Q345; ASTM A53 GrA,GrB; STKM11,ST37,ST52, 16Mn,etc. Diameter 0.1MM~12MM Length in coils 5m-14m,5.8m,6m,10m-12m,12m or as customer's actual reques Standard JIS G3466, EN 10219, GB/T 3094-2000, GB/T 6728-2002 Section Shape Round Technique Hot rolled Packing Bundle, or with all kinds of colors PVC or as your requirements Surface Treatment 1. Galvanized 2. Transparent oil,anti-rust oil 3. According to clients requirement Ends Plain end MOQ 1 Tons, more quantity price will be lower Product Application 1. Fence, greenhouse, door pipe,greenhouse 2. Low pressure liquid, water, gas, oil, line pipe 3. For both indoor and outdoor the building construction 4. Widely used in scaffolding construction which is much cheaper and convenient .
Product Name Carbon Steel Wire Rods Material Q195, Q235, Q345; ASTM A53 GrA,GrB; STKM11,ST37,ST52, 16Mn,etc. Diameter 0.1MM~12MM Length in coils 5m-14m,5.8m,6m,10m-12m,12m or as customer's actual reques Standard JIS G3466, EN 10219, GB/T 3094-2000, GB/T 6728-2002 Section Shape Round Technique Hot rolled Packing Bundle, or with all kinds of colors PVC or as your requirements Surface Treatment 1. Galvanized 2. Transparent oil,anti-rust oil 3. According to clients requirement Ends Plain end MOQ 1 Tons, more quantity price will be lower Product Application 1. Fence, greenhouse, door pipe,greenhouse 2. Low pressure liquid, water, gas, oil, line pipe 3. For both indoor and outdoor the building construction 4. Widely used in scaffolding construction which is much cheaper and convenient Wire rods are mainly used as blanks for wire drawing, and can also be directly used as building materials and processed into mechanical parts. Wire rod, also known as wire rod, usually refers to small diameter round steel in coils. The diameter of the wire rod is in the range of 5-19 mm (usually 6-9 mm), and its lower limit is the minimum size of the hot rolled steel section. Wire rods are round steel with relatively small diameter. The commodity form is supplied in coils. On the construction site, the common ones are those with diameters of 6, 8, 10 and 12 mm, most of which are low carbon steel. Generally, they are not used for the main reinforcement of reinforced concrete structures, but are mainly used for making reinforcement sleeves. There are also small diameter "brick reinforcement" used in brick concrete structures.
Product Name Straight Wire Rod Material Q195, Q235, Q345; ASTM A53 GrA,GrB; STKM11,ST37,ST52, 16Mn,etc. Diameter 0.1MM~18MM Length 5m-14m,5.8m,6m,10m-12m,12m or as customer's actual reques Standard JIS G3466, EN 10219, GB/T 3094-2000, GB/T 6728-2002 Section Shape Round Technique Hot rolled Packing Bundle, or with all kinds of colors PVC or as your requirements Surface Treatment 1. Galvanized 2. Transparent oil,anti-rust oil 3. According to clients requirement Ends Plain end MOQ 1 Tons, more quantity price will be lower Product Application 1. Fence, greenhouse, door pipe,greenhouse 2. Low pressure liquid, water, gas, oil, line pipe 3. For both indoor and outdoor the building construction 4. Widely used in scaffolding construction which is much cheaper and convenient Wire rods are mainly used as blanks for wire drawing, and can also be directly used as building materials and processed into mechanical parts. Wire rod, also known as wire rod, usually refers to small diameter round steel in coils. The diameter of the wire rod is in the range of 5-19 mm (usually 6-9 mm), and its lower limit is the minimum size of the hot rolled steel section. Wire rods are round steel with relatively small diameter. The commodity form is supplied in coils. On the construction site, the common ones are those with diameters of 6, 8, 10 and 12 mm, most of which are low carbon steel. Generally, they are not used for the main reinforcement of reinforced concrete structures, but are mainly used for making reinforcement sleeves. There are also small diameter "brick reinforcement" used in brick concrete structures.
Product Name Carbon Steel Wire Rods Material Q195, Q235, Q345; ASTM A53 GrA,GrB; STKM11,ST37,ST52, 16Mn,etc. Diameter 0.1MM~12MM Length in coils 5m-14m,5.8m,6m,10m-12m,12m or as customer's actual reques Standard JIS G3466, EN 10219, GB/T 3094-2000, GB/T 6728-2002 Section Shape Round Technique Hot rolled Packing Bundle, or with all kinds of colors PVC or as your requirements Surface Treatment 1. Galvanized 2. Transparent oil,anti-rust oil 3. According to clients requirement Ends Plain end MOQ 1 Tons, more quantity price will be lower Product Application 1. Fence, greenhouse, door pipe,greenhouse 2. Low pressure liquid, water, gas, oil, line pipe 3. For both indoor and outdoor the building construction 4. Widely used in scaffolding construction which is much cheaper and convenient Wire rods are mainly used as blanks for wire drawing, and can also be directly used as building materials and processed into mechanical parts. Wire rod, also known as wire rod, usually refers to small diameter round steel in coils. The diameter of the wire rod is in the range of 5-19 mm (usually 6-9 mm), and its lower limit is the minimum size of the hot rolled steel section. Wire rods are round steel with relatively small diameter. The commodity form is supplied in coils. On the construction site, the common ones are those with diameters of 6, 8, 10 and 12 mm, most of which are low carbon steel. Generally, they are not used for the main reinforcement of reinforced concrete structures, but are mainly used for making reinforcement sleeves. There are also small diameter "brick reinforcement" used in brick concrete structures.
* Aluminum rod is a kind of non-ferrous metal rod, refers to the use of pure aluminum or aluminum alloy by kneading processing into the longitudinal length of hollow metal rod data. May have one or more closed through holes, wall thickness, uniform cross section, in line shape or roll shape delivery. Product Name : Aluminum rod Price range : $350-$900 Preferential prices are available for large orders Minimum order quantity : 1 ton Specifications : The thickness is 2mm-200mm, the width is 5mm-150, and the length is 3m-12m or according to requirements Standard : ASTM, JIS, DIN, GB, Steel Grade : 1050106011002A16LY162A02LY6 Test : chemical Component Analysis, Mechanical Properties, Technical Properties, Exterior Size Inspection, , X-ray Test. certification : ISO,SGS,BV,TUV, Delivery Condition : Forged +Rough Machined (Black Surface) Application scenario : Application scenario,Residential Construction,Mining Infrastructure Processing Service : Welding, Drilling, Cutting, Bending Packing : Wooden pallet or according to customer's request Lead time : 7 to 15 working days Payment terms : T/T ,LC Exporting country : Southeast Asia: Thailand, Malaysia, Brunei Europe: Finland, Sweden, Ireland, Netherlands Warehouse Storage : Shandong Jintuo Metal Materials Co., Ltd is located in Liaocheng City, the capital of steel tubes. It is a large enterprise specializing in the sales of carbon steel, stainless steel, galvanized color coated products, and copper and aluminum.Our company adopts a flexible business approach and management mechanism to provide good services to customers, while also considering the interests of the owner and the project, in order to ensure the quality of the project Packing and shipping : Products are widely used in precision instruments, aviation, ships, automobiles, home appliances, construction, Bridges, boilers, highway guardrail and other industries. Annual sales of more than 6 million tons. Products are exported to more than 80 countries and regions. We have won the recognition of customers with good reputation and good service
1060 Aluminum rod is a kind of nonferrous metal rod refers to the use of pure aluminum or aluminum alloy by kneading processing into the longitudinal length of hollow metal rod data May have one or more closed through holes wall thickness uniform cross section in line shape or roll shape delivery Parameter Product Name 1060 Aluminum rod Price range 350900 Preferential prices are available for large orders Minimum order quantity 1 ton Specifications The thickness is 2mm200mm the width is 5mm150 and the length is 3m12m or according to requirements Standard ASTM JIS DIN GB Steel Grade 1050106011002A16LY162A02LY6 Test Chemical Component Analysis Mechanical Properties Technical Properties Exterior Size Inspection Xray Test Product certification ISOSGSBVTUV Delivery Condition Forged Rough Machined Black Surface Application scenario Application scenarioResidential ConstructionMining Infrastructure Processing Service Welding Drilling Cutting Bending Packing Wooden pallet or according to customers request Lead time 7 to 15 working days Payment terms TT LC Exporting country Southeast Asia Thailand Malaysia Brunei Europe Finland Sweden Ireland Netherlands Warehouse Storage Shandong Jintuo Metal Materials Co Ltd is located in Liaocheng City the capital of steel tubes It is a large enterprise specializing in the sales of carbon steel stainless steel galvanized color coated products and copper and aluminumOur company adopts a flexible business approach and management mechanism to provide good services to customers while also considering the interests of the owner and the project in order to ensure the quality of the project
2A16 LY16 Aluminum rod is a kind of non-ferrous metal rod, refers to the use of pure aluminum or aluminum alloy by kneading processing into the longitudinal length of hollow metal rod data. May have one or more closed through holes, wall thickness, uniform cross section, in line shape or roll shape delivery. Parameter Product Name 2A16 LY16 Aluminum rod Price range $350-$900 Preferential prices are available for large orders Minimum order quantity 1 ton Specifications The thickness is 2mm-200mm, the width is 5mm-150, and the length is 3m-12m or according to requirements Standard ASTM, JIS, DIN, GB, Steel Grade 1050 1060 1100 2A16LY16 2A02 LY6 Test Chemical Component Analysis, Mechanical Properties, Technical Properties, Exterior Size Inspection, , X-ray Test. Product certification ISO,SGS,BV,TUV, Delivery Condition Forged +Rough Machined (Black Surface) Application scenario Application scenario,Residential Construction,Mining Infrastructure Processing Service Welding, Drilling, Cutting, Bending Packing Wooden pallet or according to customer's request Lead time 7 to 15 working days Payment terms T/T ,LC Exporting country Southeast Asia: Thailand, Malaysia, Brunei Europe: Finland, Sweden, Ireland, Netherlands Warehouse Storage Shandong Jintuo Metal Materials Co., Ltd is located in Liaocheng City, the capital of steel tubes. It is a large enterprise specializing in the sales of carbon steel, stainless steel, galvanized color coated products, and copper and aluminum.Our company adopts a flexible business approach and management mechanism to provide good services to customers, while also considering the interests of the owner and the project, in order to ensure the quality of the project.
6061 T4 round aluminum bar is are magnesium and silicon which has moderate strength good corrosion resistance weldability and good oxidation effect In particular there is no stress corrosion cracking tendency its excellent weldability corrosion resistance and cold workability are good and it is a wide range of use A very promising alloy Can be anodized coloring can also be painted on enamel suitable for building decoration materials It contains a small amount of Cu so the strength is higher than 6063 but the quenching sensitivity is also higher than 6063 after extrusion can not achieve wind quenching need to resolution treatment and quenching aging in order to obtain higher strength 6061 aluminum alloy contains 0408 silicon 07 iron 01504 copper 015 manganese 0812 magnesium 004035 chromium 025 zinc 015 titanium and a residual amount of aluminum The tensile strength of 6061 aluminum alloy is 180Mpa yield strength is 110Mpa elongation is 14 widely used in the manufacture of trucks building ships trams furniture mechanical parts precision machining industrial materials and other fields Data presentation Product name Aluminium bar Alloy 10501060107011002A062A123003300431054A01 5A0650525056508357545A0660616063620170057075 Temper H111H112H12H16H18H24H32H14T3T4T5T6T8 Diameter 10mm400mm Length 1000mm12000mm or customized Type OEMODM Processing Service Cutting surface treatment rough bending hardening surface painting forming etc Standard ASTMAISIJISGB DINEN Certificates ISO SGSBV MOQ 1 TON Delivery time Future Goods 1020 days Ready stock 510days Packaging Seaworthy Wooden pallet Wooden caseAluminum case Application Transportation construction machinery and equipment decoration industrialization etc Payment Terms TT LC etc Warehouse storage In order to meet the needs of customers small batch multispecification to spot the minimum order quantity of a single specification is 1 ton we have been committed to 18 series aluminum sheet aluminum sheet aluminum coil aluminum foil aluminum tube and other aluminum products R D production and sales Annual inventory of more than 3000 tons complete brand specifications truly meet customers onestop procurement
* JIS Aluminum rod is a kind of non-ferrous metal rod, refers to the use of pure aluminum or aluminum alloy by kneading processing into the longitudinal length of hollow metal rod data. May have one or more closed through holes, wall thickness, uniform cross section, in line shape or roll shape delivery. Product Name : JIS Aluminum rod Price range : $350-$900 Preferential prices are available for large orders Minimum order quantity : 1 ton Specifications : The thickness is 2mm-200mm, the width is 5mm-150, and the length is 3m-12m or according to requirements Standard : ASTM, JIS, DIN, GB, Steel Grade : 1050106011002A16LY162A02LY6 Test : Chemical Component Analysis, Mechanical Properties, Technical Properties, Exterior Size Inspection, , X-ray Test. certification : ISO,SGS,BV,TUV, Delivery Condition : Forged +Rough Machined (Black Surface) Application scenario : Application scenario,Residential Construction,Mining Infrastructure Processing Service : Welding, Drilling, Cutting, Bendingï¼? Packing : Wooden pallet or according to customer's request Lead time : 7 to 15 working days Payment terms : T/T ,LC Exporting country : Southeast Asia: Thailand, Malaysia, Brunei Europe: Finland, Sweden, Ireland, Netherlands Warehouse Storage : Shandong Jintuo Metal Materials Co., Ltd is located in Liaocheng City, the capital of steel tubes. It is a large enterprise specializing in the sales of carbon steel, stainless steel, galvanized color coated products, and copper and aluminum.Our company adopts a flexible business approach and management mechanism to provide good services to customers, while also considering the interests of the owner and the project, in order to ensure the quality of the project
ASTM Aluminum rod is a kind of non-ferrous metal rod, refers to the use of pure aluminum or aluminum alloy by kneading processing into the longitudinal length of hollow metal rod data. May have one or more closed through holes, wall thickness, uniform cross section, in line shape or roll shape delivery. Product Name : 1100 Aluminum rod Price range : $350-$900 Preferential prices are available for large orders Minimum order quantity : 1 ton Specifications : The thickness is 2mm-200mm, the width is 5mm-150, and the length is 3m-12m or according to requirements Standard : ASTM, JIS, DIN, GB, Steel Grade : 1050106011002A16LY162A02LY6 Test : Chemical Component Analysis, Mechanical Properties, Technical Properties, Exterior Size Inspection, , X-ray Test. certification : ISO,SGS,BV,TUV, Delivery Condition : Forged +Rough Machined (Black Surface) Application scenario : Application scenario,Residential Construction,Mining Infrastructure Processing Service : Welding, Drilling, Cutting, Bendingï¼? Packing : Wooden pallet or according to customer's request Lead time : 7 to 15 working days Payment terms : T/T ,LC Exporting country : Southeast Asia: Thailand, Malaysia, Brunei Europe: Finland, Sweden, Ireland, Netherlands Warehouse Storage : Shandong Jintuo Metal Materials Co., Ltd is located in Liaocheng City, the capital of steel tubes. It is a large enterprise specializing in the sales of carbon steel, stainless steel, galvanized color coated products, and copper and aluminum.Our company adopts a flexible business approach and management mechanism to provide good services to customers, while also considering the interests of the owner and the project, in order to ensure the quality of the project
Copper cathode , copper millberry scrap, copper scrap, copper ingot, copper wire rod.Exporter
Graphite Round Stick for Gold Silver Casting There are two types of graphite rod, blank material (unmachined graphite rod) and finished product (machined graphite rod). Graphite rods are often used as electric heating elements in high-temperature vacuum furnaces. The maximum operating temperature can reach 3000�?�°C. It is easy to oxidize at high temperatures, it can only be used in neutral or reducing atmospheres and vacuum furnace. Its thermal expansion coefficient is small, thermal conductivity is large, resistivity is (8~13) 10-6 m, easier to process than SiC, MoSi2 rod, high temperature resistance, extreme cold and extreme heat resistance, good price Cheaper.
Graphite rod is used in the fields of national defense, machinery, metallurgy, chemical industry, casting, non-ferrous alloys, and lightening, especially black carbon rods. It is also used in the fields of ceramics, semiconductors, medicine, environmental protection, laboratory analysis, etc. metallic material. When cutting steel, it is not necessary to use flammable and explosive gases like oxygen-acetylene flame cutting, which has low cost and safe operation. You can use arc cutting to process a variety of metals that cannot be processed by gas cutting, such as cast iron, stainless steel, copper, aluminum, etc., with high efficiency, and all can get more ideal results. Performance: The component is hard and brittle, has a small expansion coefficient, can withstand rapid cooling and heat, is not easy to deform, has good chemical stability, has strong acid resistance, does not react with strong acids, has poor alkali resistance, and can corrode at high temperatures.
Lithium ore, tin, mica, lead ore, zinc oxide and natural graphite.
