... Medium Chromium Alloyed Cast Grinding BallSpecificationφ12,φ15,φ17,φ20,φ25,φ30,φ40,φ50,φ60,φ70,φ80,φ90,φ100 ... Ability50000Ton per yearPackagingBag or steel drumDelivery TimeWithin 30daysUsageThe GUAN WANG Medium Chromium Alloyed Cast Grinding Ball is widely used in ... ceramic coating, light industry, magnetic materials. Our grinding ball has the characterisitic of high hardness, good wear resistance and ...