Application: Industrial ceramic grinding media,grinding Self Abrasion:0.0055-0.01% Density:≥3.60g/cm3,3.7g/cm3 Al2O3 content:92%,95% Making type: Rolling; ISP Moh\'s hardness:≥9 HRA: 85 Water absorption:≤0.01% Type: Ceramic Balls, alumina grinding media balls ...