Features: 1) Alumina balls for grinding a) Used for efficient grinding and dispersion of white cement, ceramic materials, enamels, glazes, pigments and rubbers b) Main specifications: i) Al2O3: 85%, 92% or 99% min. ii) Specific gravity: 3.4 - 3.85g/cm3 iii) Bulk density: 1.8 - 2.4g/cm3 iv) Hardness: 75HRA min. v) Attrition loss itself: 0.3g/kg HR max. (7L of polyurethane vessel inside with alumina ball and water each 4kg has been turning for 24 hours under rotational speed of 130rpm) vi) Diameter: 2.0 - 76.0mm c) Alumina products for grinding such as alumina balls, rings and cylinders can be provided according to customers' specific requirements 2) Alumina balls for support a) Used for general purpose support requirements in refining, petrochemical and gas plant where ceramic support utilization is acceptable b) Main specifications: i) Al2O3: 92% min. or 99% min. ii) Specific gravity: 3.4 - 3.85g/cm iii) Bulk density: 1.8 - 2.4g/cm3 iv) Hardness: 75HRA min. v) Water absorption: 2 - 5% vi) Diameter: 2.0 - 76.0mm c) Alumina products for support such as alumina balls, rings and cylinders can be provided according to customers' specific requirements