... customers' requirements. 3. Used for refractory products. Refractory raw material,Refractory material,RefractoryRefractory raw materials is the main ... production of refractory products and high-temperature products, we can supply the flint clay clinker, mullite, calcined ... kaolin, bauxite, corundum, silicon carbide, calcined alumina, fire clay, ball clay etc. Refractory raw ...