... :WAP is one kind of high pure white fused aluminium oxide grain for coated abrasives,Its high friable, well self-sharpening ... belt.Typical Chemical Analysis:Al2O3 99.45%Na2O 0.26%SiO2 0.13%Fe2O3 0.04%Physical Properties:Color WhiteShape Angular ... :2006 or ISO 6344-2: 1998Key words:white fused aluminium oxide,fused brown corundum,corundum,brown fused alumina,brown aluminium ...