... material from contamination because of its extreme low wear rate.2. High grinding efficiency.3. Lower total costs due to the ... , pigment and other industries.Available SizeSphere: Φ0.6, Φ0.8, Φ1, Φ1.5,Φ2, Φ2.5,Φ3,Φ5, Φ6.5Φ7,Φ10,Φ12,Φ15 ... ,Φ20, Φ30,Φ55,Φ60mmCylinder: Φ3*3, Φ5*5, Φ7*7, Φ10*10 ...