... Grit Size:8-5,3-1,1-0 Refractory Materials White Fused Alumina 1. White Fused Alumina Description1 ... in the production of high-grade refractory, abrasives, polishing materials, coating, chemical catalyst carrier, special ceramics and etc.2) ... polishing medium, precision founding sand, coating materials, catalyst carrier, special ceramics and super refractory materials.Wilead Company Building And White ...