High Medium Low Chrome Cast Grinding Balls for Gold and Copper Ore Grinding

High Medium Low Chrome Cast Grinding Balls for Gold and Copper Ore Grinding. Low Breakage Rate: Breakage rate is below 1% ensuring long service life. High Hardness: Hardness ranges from 50 to 65 HRC for superior wear resistance. Customizable Sizes: Available sizes from 20mm to 150mm with custom options. Diverse Material Options: Materials include high chrome alloy steel, medium chromium alloy steel,Low chromium alloy steel. Factory Direct Sale: Direct from manufacturer with stable supply and competitive pricing. Sample Availability: Sample balls are available for testing before bulk orders. ISO and SGS Certified: Products meet ISO9001 and SGS certification standards.