RCAB-2 hot rolled steel ball 1.size:20-60mm 2.HRC:60-64 3,high hardness,no breakage,good ductility,excellent quality, Rolled ... balls for mining, cement plant, power station, chemical industry. The quality of our grinding steel balls can meet different requirements of ... depends on the specific mine ore, the temperature, the ball mill and other conditions.)The process line of productionPacking