Brown fused alumina description: aluminum oxide is manufactured in an electric arc furnace that produces an extremely tough, long-lasting grain which is graded to exacting standards. The various macrogrit sizes may be used for all types of bonded abrasive and general industrial applications. Main applications: 1) abrasives: bonded abrasives : resin boned abrasives cut off wheel , ceramic grind wheel, grinding stone, grinding wheel , grinding block polish wax coated abrasives : sand paper, sand belt , sand cloth , sander disc flap disc , 2) refractory material: mainly used for abrasion and high temperature resistance, in oxidizable aggregate and filling of shaped and monolithic refractory in steel metallurgy, various industrial stoves, electric furnace etc. 3) sandblasting abrasive: it is mainly used for various material work pieces to decontaminate, prevent corrosion, remove oxide skin, light-decorate, process pattern effect and so on. 4) abrasion resistance ground : it is mainly used for nonslip of airport and road, chemical factory board paving and surface decorated material of dam. 5) precision casting: casting technics of stainless steel and aluminum casting in coating. Product features high hardness and purity , extremely , sharp, and durable angular shape and fairly high bulk density will produce a matte surface finish reusable many times because of its hardness and durability high purity no fracture or pulverization; no crack or rust when made into abrasive tools good crystallization state abrasive grain sizes: brown fused alumina section sand: 0-1mm, 1-3mm, 3-5mm, 5-8mm; brown fused alumina fine sand(pf): 8 #, 16#, 20#, 24#, 30#, 36#, 46#, 60#, 80#, 100#, 120#, 150#, 180#, 200#, 220# brown fused alumina powder: 240#, 400#, 600#, 800#, 1000#. 1500#