Application:Industrial ceramic grinding media Self Abrasion:0.0055-0.01% Al2O3 content:92%,95% Making type:Rolling; ISP HRA: 85 Type:Ceramic Balls,alumina grinding media balls Appearance:Smooth and white Color:white Compressing strength:2000Mpa Size:0.5mm-95mm Advantage: High wear resistance HS code:690912 Certificate:ISO 9000