silicon carbide refractories is the most commonly used in the field of one of the oxide refractory materials.Its products good crystal structure, particle density, microhardness, hydrophilic national standards requirements, product implementation of national standard and international standards, product has strong hardness, high temperature resistant, corrosion resistance, good electric conductivity, widely used in metallurgy deoxidization, refractory products, electronics, machinery and other industries, is also the important raw material for manufacture of moulds.