... is used for production of all kinds of premium quality brown aluminum oxide coated abrasive products like abrasive ... 280, 320, 360, 400, 500, 600, 800, 1000, 1200.Grain Size Distribution :Upon ANSI B74.18-2006 ... words:heated aluminium oxide grain, calcined aluminium oxide grain, high temperature treated brown fused aluminium oxide,fused brown corundum, heat treated brown aluminum oxide for making ...