... factory specialized in producing Forged Grinding Balls and Cast Iron Ball in China. We always provide high quality ... 4. Diameter, Diametrical tolerance, Weight , Impact toughness Nominal diameter(mm)Diametrical tolerance(mm)Weight of Singleof grinding ballin averageNumber of ... Grinding Ball, Casting Grinding Ball, Casted Grinding Ball, Cast Iron Ball, Casting Ball, Cast Ball, Casted Ball, High Chrome ...