For Abrasives and Refrqactories High Purity Alumina We can supply over 30000mt per ... .It is very important raw material for advanced refractories and abrasives.Its properties are as folowing. ItemsUnitIndexTypicalChemicalcompositionAl2O3%99.00min99.52SiO2%0.20max0 ... -1, 1-3, 3-5,5-8Finesmesh-200, 325GritF grade and P gradeFEPA16, 24, 46, 100,180,220 White Fused Alumina ...