... Cast Grinding BallSpecificationφ12,φ15,φ17,φ20,φ25,φ30,φ40,φ50,φ60,φ70,φ80,φ90,φ100,φ110NameHigh Chromium Alloyed Cast Grinding ... ash content20-50g/tonLow hardness ore50-200 g/tonCement 10-50 g/tonRemark: the above specification can be changed according to ...