... -8.0,P: 0.1 max,S: 0.1 max. Medium Chromium Alloyed Cast Grinding BallSpecificationφ12,φ15,φ17,φ20,φ25 ... Ability50000Ton per yearPackagingBag or steel drumDelivery TimeWithin 30daysUsageThe GUAN WANG Medium Chromium Alloyed Cast Grinding Ball is widely used in cement ...