High-precision bearing balls made from GCr15, AISI 52100 and 100Cr6 chrome steel for industrial bearing systems, automotive transmissions and high-load machinery. Kangda states that induction hardening and precision finishing achieve G10-G40 grades. The range includes 1.5 mm and 1.5875 mm G10 balls, 3.1 mm to 4.7 mm GCr15 balls, 6.35 mm to 50.8 mm chromium balls, and industrial balls up to 90 mm. Stainless steel bearing balls are also listed for precision and moisture resistance.