... mediums.1.Name: HNCC Ceramic Ball, HNCC Zirconia Ball, Best grinding Medium, HNCC Zirconia Ceramic Ball2.Material Superfine Zirconium ... .Density: ≥5.95 g/cm35.Properties Zirconia Ceramic ball possesses High grinding efficiency, High hardness, corrosion resistant ... 8mm,Φ10mm,Φ12mm,Φ15mm,Φ20mm etc.Process arrangement by following YOUR requirement .8.Physical parameters ItemsValuesUnitComposition94. ...