This product has high temperature resistance, ablation resistance, high purity, low ash content, high strength and other characteristics. It can be used in high temperature environment under vacuum or inert gas protection. The maximum service temperature of this product can be 3000℃. It also has high temperature stability and long life. This product is widely used in single crystal growth furnaces, polysilicon Ingot furnaces, powder metallurgy industrial furnaces, vacuum sintering furnaces, medium frequency induction furnaces.