... , sand grinding,vibration grinding 3.monthly output 10,000tons!!! High alumina micro beads--Al2O3 92%, size 0.1-29mm: ... ,paint, ink, coatings, dyes,rubber and power industries. Performance:• High density and hardness, impact resistance, low wear rate, smooth surface ... ball size ratio, it can achieve high grinding efficiency with material results D50≤1µm• High performance and low price Technical Data: ...