FEPA P grit for producing sanding belt,sanding paper,sand cloth,jumbo roll,fused abrown,corundum,brown aluminium oxide Description:AP-17 It ... one type of non-calcined Brown Fused Aluminium Oxide grain for coated abrasives application, the grain shape is very sharp, the ... collected by well water washing, AP-17 can be used for producing all kinds of coated abrasives products, such as sand ...