Metallic Ore Ball Mill

2015-7-42 inch ball mill grinding media forged and rolling steel balls for gold mining tsf50 - taishan products made in china, china manufacturer inch ball mill grinding media forged and rolling steel balls for gold mining description 1oduction process forged or rolling 2terial 45 steel,60mn steel,65mn steel,b2 steel,b3 steel,b6 steelrface hardness 50-68hrc 4ameter 50mm2 inch.