BFA/Brown Aluminum Oxide 3-5mm 1) Al2O3:95.5%min 2) ISO 9001:2008 3) ... High alumina refractory 4) Professional manufacture BFA 3-5mm 1. Description:♦Brown fused alumina is electrically fused in an ... etc. 3. Grit Size Available:0-1mm, 1-3mm, 3-5mm, 5-8mm, 8-12mm, 25-0mm, 10-0mm, 50-0mm ...