... 15mm Density: 6.0g/cm3 Accumulation of proportion: 3.6g/ml -3.7g/mlHardness: 1250HV1 Intensity of high hardness, ... of materials to prevent pollution 2. High grinding efficiency 3. Extremely long life, low cost integrated 4, for ... high strength, high toughness products: magnetic materials, piezoelectric ceramics, dielectric ceramics 3, to prevent pollution: medicine, food, cosmetics 4, Ceramics: ...