130mm140mm Grinding Steel Ball Bolas De Acero Casting Steel Ball Bola De Molino Hot Rolled Forged Steel Ball Bearing Grinding Ball Grinding Media for Ball Mill

130mm140mm Grinding Steel Ball Bolas De Acero Casting Steel Ball Bola De Molino Hot Rolled Forged Steel Ball Bearing Grinding Ball Grinding Media for Ball Mill. High Hardness & Low Breakage: HRC 55-65 hardness with breakage rate less than 1% for extended lifespan. Customizable Specifications: Customized sizes from 15mm to 150mm and material grades like 45#, 65Mn, B2, B3. Versatile Application: Specially designed for ball mills and SAG mills with diameters up to 13m. Fast Delivery Options: 5-10 days for stock items; 15-20 days for customized orders after payment. Free Sample Evaluation: Free samples provided for quality assessment (buyer pays freight). Professional Manufacturer: 30+ years experience with ISO9001 certification and advanced production lines. Global Export Experience: Products exported to over 40 countries with offices in USA, Malaysia, etc. Flexible Payment Terms: 100% advance for small orders; 30% T/T advance for orders over $1000.