Steel balls. Stainless steel ball. chrome steel ball. carbon steel ball. brass ball.G5 to G2000.Size 0.8mm ... 8mm 2.Grade: G10-G1000 3.HRC: 60-66 4. The quality of our steel balls confirms to standards of GB/T308 ... ), DIN 5401:2002-08, JIS B 1501.With reputed steel balls and ball retainers, together with our value-added service ... Japan, Korea, India, Russia, Turkey, Germany, Mexico and so on. Steel balls