... density Highhardness. 1.We can produce any kind of zirconia grinding balls 2.Meterial:ZrO2 3.Sizes:0.2-3mm,5mm,10mm ... ,15mm,20mm 4.high density OEMZirconia ball, zirconia grinding ball, zirconia grinding media 1.We can produce any kind of zirconia ... lower than Al2O3, CeO2-ZrO2, and MgO-ZrO2 grinding media.4) Suitable for high velocity operations and wet grinding operations. zirconia balls for grinding