... Description:WAP is one kind of high pure white fused aluminium oxide grain for coated abrasives,Its high friable, well self-sharpening ability ... WAP can be well used for many kinds of coated abrasives like sanding paper, sanding cloth, and sanding belt. ... 1:2006 or ISO 6344-2: 1998Key words:white fused aluminium oxide,fused brown corundum,corundum,brown fused alumina,brown aluminium oxide,fused alumina