... .5mm ~70mm 4.Manufactory type:CIP or Rolling Ceramic balls have characteristics of high strength, high density, high abrasion ... , entire specification,strong practicability. It can be used for ball mill, mixing mill, vibration mill, sand mill, etc. ... 50mm,60mm,70mm. Performance Index of Wear-resistant Alumina Ball Performance Index HXMM70 SeriesHXMM80 SeriesHXMH92 SeriesHXMH95 SeriesAl2O3(%)≥70≥80 ...