... , stablequality 2,for ceramics, refractory, polishing calcined alumina( ceramic grade)1ball grain,good liquidity,granularity, stablequality 2, ... ceramics, refractories and surface treatmentwhite thin alumina powder for 99#ceramicsCalcined alumina for ceramics, refractories and surface ... .Ceramic grades are used in the manufacture of grinding media, glazes, technical and advanced ceramics.Alpha alumina ...