... fractions. 1.professional manufacture2.Al2O3 high percentage composition Brown Aluminum Oxide produced from bauxite fused and reduced (to remove Fe2O3 ... and resin bonded abrasive tools, used for grinding metals of high-tensile strength, such as carbon steel, general ... widely used as surface preparation abrasive, cleaning, grinding, polishing of various metals, glass, rubber, mould industries. It’s also ...