... 4 OEM High Purity Brown Aluminum Oxide of Different Size( Hot Selling) Detailed Product Description1. Description:♦ ... resistance ground♦ Producing mold of precision casting3. Grit Size Available (P, F):P series: P8, P10, ... F400, F500, F600, F800, F1000, F12004. Assembly processing step:First step: Fragmentation( jaw crushing and ball crushing) ... High Purity Brown Aluminum Oxide of Different Size