... .5mm ~70mm 4.Manufactory type:CIP or Rolling Alumina ball have characteristics of high strength, high density, ... mill, etc. The products are widely used in construction ceramics, sanitary ceramics, kaolins, refractory materials, paints, coatings and other ... 50mm,60mm,70mm. Performance Index of Wear-resistant Alumina BallPerformance Index HXMM70 SeriesHXMM80 SeriesHXMH92 SeriesHXMH95 SeriesAl2O3(%)≥70≥ ...