FEPA P grit for producing sanding belt,sanding paper,sand cloth,jumbo roll, ... one type of non-calcined Brown Fused Aluminium Oxide grain for coated abrasives application, the grain shape is very sharp, ... collected by well water washing, AP-17 can be used for producing all kinds of coated abrasives products, such as ... 1:2006 or ISO 6344-2: 1998 brown fused alumina for making sanding cloth jumbo roll