This product has good thermal conductivity and high temperature resistance. In the process of high temperature use, the coefficient of thermal expansion is small, and it has certain strain resistance to acute heating and acute cooling. It has strong corrosion resistance to acid and alkaline solution and excellent chemical stability. In metallurgy, casting, machinery, chemical industry and other industrial sectors, it is widely used in alloy tool steel smelting and non-ferrous metals and their alloys smelting