Copper Mine Used Grinding Steel Ball with Low Broken Rate

Copper Mine Used Grinding Steel Ball with Low Broken Rate. Low Breakage Rate: Breakage rate is less than 0.5% across different application areas. Customized Options: Available for size, surface to core structure, and microscopic structure. Wide Size Range: Available in sizes from 10mm to 165mm with specific tolerances. High Chrome Variants: Offers Low, Medium, High, and Superhigh chrome options with varying hardness. Free Sample Policy: Free samples under 10kg available, customer pays courier fee. ISO Certification: Company holds ISO 9001:2015 certification with third-party test reports. Strict Quality Control: 100% inspection on finished products including visual and function checks. Fast Lead Time: Peak and off-peak season lead times are both within 15 working days.