... 1.good quality and high purity 2.used for abrasives and sandblasting 3.ISO 9001:2008 4 ... make advanced refactory. The detail information:Brown Fused AluminaF grits for Bonded Abrasives14# ,16#,20#,22#,24# , 30#,36# ... #,80#,90#,100#,120#,150#,180#,220#,240#P grits for Coated Abrasives14# ,16#,20#,22#,24# , 30#,36# ... —1mm,1—3mm,3—5mm,5—8mm,8—12mmFines for refractory180 Mesh,200 Mesh,325 Mesh91%—93% Al2O3, ...