... into the specification as follows: Common Ceramic Ball, Inert Alumina Ceramic Ball, Medium-Alumina Ceramic Ball, High-AluminaCeramic Ball and 99 ... 25, 30, 38, 50, 65, 752. Thermal Storage Ceramic BallThermal Storage Ceramic Ball is a kind of special packing as heat ... hardness, high wear resistance. During the abrasive/grinding processing, ceramic balls will not break up, it will not pollute the grinded ...