... 9001:2008 3) Overseas for 5 years 4) Professional manufacture Brown Aluminum Oxide for Glass Polishing Wheels 1. ... perfect material specifically manufactured to be used for general abrasive applications in bonded and coated ... casting 3. Grit Size Available (P, F):P series: P8, P10, P12, P16, P24, P30, ... P600, P800, P1000, P1200, P1500, P2000, P2500, P3000F series: F4, F8, F10, F12, F14, F16, F22, F24 ...