... alumina-high purity Brown Fused Alumina is a high-quality abrasive grade bauxite as raw material, together with accessories, ... spherical particles, for the manufacture of ceramics, resin and high-abrasive grinding, polishing, sand blasting, precision casting. Grade corundum ... black color. Brown Fused Alumina is a high-quality abrasive grade bauxite as raw material, together with accessories, in ...