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Super Purchasing for Sag Mill Grinding Ball Forged Steel Ball with High Impact Resistance
Mechanical Property
density：7.80-7.85g/cm³
surface hardness HRC：≥58
centre Hardness HRC：≥55
Ak：≥12J
ball test times：≥10000（10m）
as per standard:YB/T 091-2019 and order requirements
