Silicon carbide is divided into black silicon carbide and green silicon carbide, both of which are hexagonal crystals, with specific gravity of 3.20 ~ 3.25 and microhardness of 2840 ~ 3320kg/mm2.We have our own smelting and powder production line, which provides powder from block to 0.5um micro/nano level, and do quality control from the source, so as to provide stable guarantee for customers and downstream products.