... ,20mm4.high densityOEMApplications: 1, wear-resistant, corrosion-resistant products: paints, textiles, paints, printing and dyeing 2, high strength, high toughness products: magnetic ... Al2O3, CeO2-ZrO2, and MgO-ZrO2 grinding media.4) Suitable for high velocity operations and wet grinding operations. zirconia balls ...