China Ball Mill Grinding Media Cast Iron Ball Forged ...
Ball Mill Grinding Media Forged Steel Ball / Cast Iron Ball with Low Price Product Description. Forged grinding ball information: 1. Grade: 45#,50Mn,60Mn,65Mn,B2,B3,BL,BG 2. Diameter: 20mm150mm 3. Hardness: HRC 5565 4. Breakage Rate:<% 5. Impact Value: >12j/Cm^2 6. Falling ball .