With the application of flexible graphite products in modern engineering more widely, world demand for flexible graphite material is growing year by year. Most foreign producers of flexible graphite for automotive engine cylinder head gasket, intake and exhaust ports mats and other seals graphite, followed by the seals petrochemical, chemical, power generation and other sectors. Because of restrictions on domestic asbestos disputed carbon graphite sell restricted flexible graphite used in the internal combustion engine seals, the main market is still in the chemical, petrochemical and power generation industries. Morphological characteristics of graphite is soft, dark gray; greasy feeling Qingdao graphite, can contaminate the paper. Hardness of 1 to 2, in the vertical direction with an impurity to increase its hardness can be increased to 3 to 5. Specific gravity of 1.9 to 2.3. The specific surface area in the range of focus 1-20m2 / g, under conditions of oxygen isolation, having a melting point above 3000 ℃, temperature is one of the most minerals. It conductivity, thermal conductivity. Nature there are no pure graphite, which often contain SiO2, Al2O3, FeO, CaO, P2O5, CuO and other impurities. These impurities often appear with 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 determination of fixed carbon content, but also must determine the content of volatile matter and ash at the same time. Lacey graphite, carbon industry in the North Sea Dragon (certified), graphite is provided by Carbon Co., Ltd. Weifang Sea Dragon. Weifang Sea Dragon Carbon Co., Ltd. (www.longmentanye.com) Shandong Weifang, graphite and carbon products leader, over the years, the company implement 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.