In graphite crystal, the carbon atoms in the same layer sp2 hybrid form a covalent bond, each carbon atom covalently linked to three with three other atoms. Six carbon atoms in the same plane are formed again and again six ring-shaped graphite wholesale, stretching into a lamellar structure, where the keys are all CC bond length 142pm, this is just part of the bond length range atomic crystals, so for the same layer to that it is an atomic crystal. Carbon atoms in the same plane but also each of the remaining one p orbital, they overlap each other. Electronic relatively free, equivalent metal free electrons, so the graphite can be thermally and electrically conductive, which is characteristic of metal crystals. Therefore classified as a metal crystal. Chemical composition of graphite is carbon (C). Natural output is rarely pure graphite, often contain 10% to 20% of impurities, including SiO2, Al2O3, MgO, CaO, P2O5, CuO, V2O5, H2O, S, FeO and H, N, CO2, CH4, NH3, etc. Graphite iron minerals were black, steel gray, shiny black streaks; metallic luster, hidden polycrystalline aggregates glossy dark graphite, opaque; {0001} cleavage completely, hardness with anisotropy of graphite prices, vertical cleavage plane 3-5 parallel cleavage plane is 1 to 2; soft, density of 2.09 ~ 2.23g / cm3, a greasy feel, easily contaminated fingers. Nature there are no pure graphite graphite image, typically comprising SiO2, Al2O3, FeO, CaO, P2O5, CuO and other impurities. These impurities often appear to quartz, pyrite, carbonate and other minerals form. In addition, water, bitumen, CO2, H2, CH4, N2 and other gases portions. Therefore, the analysis of graphite, in addition to the fixed carbon content was measured, it must also determine the content of volatile matter and ash at the same time. Wholesale graphite, carbon industry in the North Sea Dragon (certified), graphite is provided by Carbon Co., Ltd. Weifang Sea Dragon. Carbon Co., Ltd. Weifang Sea Dragon (www.longmentanye.com) Shandong Weifang, graphite and carbon products leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In the North Sea Dragon carbon industry leadership with the staff warmly welcome all inquiries negotiations to create the North Sea Dragon carbon industry a better future.