china manufacture white fused alumina oxide WFA WA White Fused Alumina,a kind of high-grade refractories, was made from the high quality alumina by melting above 2000 in the electric arc furnace and cooling. It is white with the main crystal phase alpha-Al2O3.The white alumina produced in titling electric arc furnace has the advantage of high bulk density and low porosity and the volume stability and thermal shock resistance can be improved. Product Name china manufacture white fused alumina oxide WFA WA size 0-1mm 1-3mm 3-5mm 5-8mm -100mesh -200mesh -320mesh Color white Raw Material Aluminum Oxide Al2O3 99% Na2O 0.15-0.35% Fe2O3 0.02-0.08% Mohs Hardness 9.0 Specific Gravity 3.95g/cm3 Bulk Density 1.75-1.95g/cm3