... -calcined Brown Fused Aluminium Oxide grain for coated abrasives application, the grain shape is very sharp, the strip and needle shape are ... well kicked out of the grainsApplications:With the concentrated size ... 280, 320, 360, 400, 500, 600, 800, 1000, 1200.Grain Size Distribution :Upon ANSI B74.18-2006, FEPA-standard 43 ...