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                  graphite machining

                  • Graphite Machining Inc

                    Graphite Machining Inc is made of high-quality low ash materials, like the petroleum coke, needle coke and coal pitch. After experiencing calcinations, burdening , kneading, forming, baking and pressure impregnation, it is graphitized in a high temperature of over 3000℃, And then treated with machining. 1. The various physical and chemical indicators of graphite electrodes directly depend on the quality of the raw materials and the construction process of each link. The raw materials of our factory mainly come from PetroChina, Sinopec, as well as the United States and Japan. 2. Graphite Machining Inc is widely used for electric arc steel-making, yellow phosphorus, indusreial silicon, other alloys and non-metallic materials of electric atc furnace. 3. Graphite Machining Inc is characterized by low resistivity, good electrical conductivity, low ash, even and compact structure, good antioxidation and high mechanical strength

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                  AV图片_无码人妻系列在线观看_亚洲欧美日韩在线无码不卡_被學生輪姦的女教師