China Grinding Steel Ball,Forged Steel Ball,Mill Bal,Cast ...
Dia 20mm150mm Forged Steel Grinding Ball For Mining. Dia 20mm 150mm Forged Steel Grinding Ball For Mining DESCRIPTION 1 Grade C45 60Mn B2 B3 Gcr15 2 Diameter 20mm 150mm 3 Hardness HRC 55 65 4 Breakage Rate 1 5 Impact Value 12j Cm 2 6 Falling ball times 20000 Steel grinding balls also named grinding balls grinding steel balls forged grinding balls steel balls mill balls...