The Properties Microcrystal Wear Alumina Ball(ROLLING) The Mainly Chemical Composition Al2O3 more than 92% SiO2 less than 7% CaO+MgO+Fe2O3+others 2% Bulk Density 3.60g/cm3 Water Absorption <0.01% Hardness(Mohs) more than 9 Self Wear Rate <0.01%(24h) Color White The Character of Microcrystal Wear Alumina Ball(ROLLING) The strength of alumina ball by rolling is around 10% less than that by press method. It has higer cost performance than CIP. Notes: We can pack the products according to your requirement, also we can do OEM or ODM. The main application areas Ceramic, building materials, Chemical etc.