20mm 25mm Forged Steel Balls for Ball Mill Forged grinding steel balls used in ball mill for mining industries: Diameter: 20mm, 25mm, 30mm, 40mm Hardness: HRC60-65(Surface and Volumetric) Characteristics: High hardness, good wear resistance, no breakage. We use the special high carbon steel materials to produce the mill balls to ensure the good performance of high hardness and wear resistance applicable in ball mills.
