
China Factory Solid Mirror Chrome Steel Ball Gcr15 AISI 52100 G10 G28 5.556mm 3.969mm 4.5mm Bearing Balls. Customized Sizes: Available in 5.556mm, 3.969mm, and 4.5mm with G10-G1000 precision grades. High Polished Surface: Features high polished surface with roughness from 0.020 to 0.150 depending on grade. Corrosion Resistance: Chrome steel material provides excellent corrosion resistance for various applications. ISO & TS16949 Certified: Holds ISO9001 quality system and TS16949 automotive parts certificates. Logo Customization: Custom logo printing available on products and packages subject to MOQ. Strict Quality Control: Includes strict detection during production and intact packaging before shipment. Sample Cost Refund: Sample cost and express fee refunded upon placement of the first order. 20 Years Industry Experience: Over 20 years of experience in producing steel balls for chemical plants.