... kind of blue color roasted, angular, sharp-edged Brown Fused Aluminum Oxides. The abrasive grains is calcined at high temperature to ... used for production of all kinds of premium quality brown aluminum oxide coated abrasive products like abrasive cloth, paper and sanding ... Available (P):240, 280, 320, 360, 400, 500, 600, 800, 1000, 1200.Grain Size Distribution :Upon ANSI B74.18-2006, FEPA ...