White fused alumina, made from industrial alunima melt in arc furnaces at high temperature, is the basic raw material for manufacturing high temperature refractory materials, such as corundum, corundum - mullite, etc, and has been widely used in abrasion, metallurgical continuous casting, and petrochemical and black carbon industries.Grain size: 0-1, 1-3 , 3-5mm,  120,180,240,320mesh