forged grinding steel ball for ball mill in mines
forged grinding steel ball for ball mill in mines cement plant power plant 20150mm 1/46 jinan houde Products Made In China, China Manufacturer. Product Description 1 > High Hardness: Surface hardness: HRC5767 HRC, volume hardness HRC5664. 2 > High Impact Toughness: The impact toughness of our grinding balls is more than 12 J / cm2. 3 > Low Broken Rate: the actual broken rate