Here to introduce the use of silicon carbide products are: (1) as abrasive, can be used to do abrasive, such as a grinding wheel, Whetstone, grinding head, sand tile and so on. (2) as a metallurgical deoxidizer and high temperature resistant materials. There are four main applications of silicon carbide, namely: functional ceramics, advanced refractory materials, abrasive and metallurgical materials. At present, silicon carbide coarse material has been able to supply a large number, cannot be considered high-tech products, and high technical content of nano-grade silicon carbide powder application can not form a short period of time economies of scale. (3) high purity single crystal, can be utilized in the manufacture of semiconductors, the manufacture of silicon carbide fiber.