... :95.5%min 2) ISO 9001:2008 3) High alumina refractory 4) Professional manufacture BFA 3-5mm 1. Description:♦Brown fused alumina is electrically ... Size Available:0-1mm, 1-3mm, 3-5mm, 5-8mm, 8-12mm, 25-0mm, 10-0mm, 50-0mm, 30-0mm, 180#-0, 200#-0, 320#-0Generally ... , we use 7 washing and 5 sieves for sieving the material. 4 ...