forged steel grinding ball for gold mine mill
2 inch Ball mill grinding media forged and rolling steel balls for gold mining TSF50Taishan Products Made In China China Manufacturer. 2 inch Ball mill grinding media forged and rolling steel balls for gold mining Description 1.Production process forged or rolling 2.Material 45# steel 60Mn steel 65Mn steel B2 steel B3 steel B6 steel. 3 rface hardness 50 68HRC 4.Diameter





































