... ideal choice as grinding mediums.1.Name: HNCC Ceramic Ball, HNCC Zirconia Ball, Best grinding Medium, HNCC Zirconia Ceramic Ball2.Material ... ISO9001,ISO140014.Density: ≥5.95 g/cm35.Properties Zirconia Ceramic ball possesses High grinding efficiency, High hardness, corrosion resistant, High ... wet grinding and dispersion of occasionsIf your any need,please contact with me,I will try my best to service you ...