product Overview: 　　Plastic phase composite corundum brick is a composite refractory product with corundum, silicon carbide, and a binder mixed in a certain ratio, and then pressed and molded at high temperature to produce soft, high strength, strong flexibility, and good slag resistance. Mainly used for masonry blast furnace hearth, furnace bottom lining, calcium carbide furnace door, etc. According to physical and chemical indicators, it is divided into four grades: ZSG-1, ZSG-2, ZSG-3 and ZSG-4.