... materials manufacturer. We produce ceramic knife, zirconia grinding media, ceramic valves, zirconia powder Our zirconium grinding media is made from high quality raw materials by ... , food and medicine raw materials. Compared with traditional grinding medium such as alumina balls, zirconium silicate balls, steel balls, agate balls and glass ... ×3,5×5,7×7,10×10,12×12mm zirconia Grinding media