... emery,Brown corundum 1) High Al2O3 Content: 95%min 2) Professional manufacturer on BFA 3) High Quality 4)Prompt Delivery emery, ... Brown corundum 1) High AL2O3 content: 95%min 2) ... applications and group grits for refractory applications. Application: Resin ceramic abrasive, sand blasting, grinding and polishing, and is widely ...