... zirconium new materials manufacturer. We produce ceramic knife, zirconia grinding media, ceramic valves, zirconia powder Our zirconium grinding media is made from ... with traditional grinding medium such as alumina balls, zirconium silicate balls, steel balls, agate balls and glass pearls, zirconia grinding mediumY-TZP grinding medium)has ... :3×3,5×5,7×7,10×10,12×12mm zirconia Grinding media