... 3 for bonded abrasive and blasting 4 best service fused Brown corundum 1) High AL2O3 content: 95%min 2 ... belt, polish wax, abrasive paste, coating etc.. 2) Refractory material: Mainly used for abrasion and high temperature resiatant, inoxidizable ... aggregate and filling of shaped and monolithic refractory in steel metallurgy, various industrial stoves, electric furnace etc ...