... resistance 4.95/90/85/80/70 supply brown aluminium oxide Product Description: Brown fused alumina is made by bauxite ... Data: Chemical compositions Range Of Grit Sizes Al2O3(%)TiO2(%)SiO2(%)Fe2O3(%)4#-90#94.5-971.5-3.81.5max0 ... zeolite filters, fillers, bulk bauxite, corundum, white corundum, black corundum, silicon carbide, spinel and other refractory products. Strong economic strength, advanced ...