... .Competitive price 3.manufacture experience 4.high purity alumina powder for polishingLeading manufacturer , supply high quality product, good service . white fused ... in group size :0-1mm, 1-3mm, 3-5mm, 5-8mm ,8-12mm, 0-3mm, 0-5mm,0-10mm, ... WA Chemical compositions Physical propertiesItemsValue of specification (%) ItemsPropertyAl2O3 99.55min ColorWhiteSiO2 0.05max Bulk density1.75-1.95g/cm3Na2O ...