Carbon Steel Ball, Stainless Steel Ball manufacturer / supplier in China, offering QS Factory Direct Sales G1000 7.9375mm 5/16 AISI1010/AISI101 Precision Carbon Steel Balls 9.525mm 3/8′′ 11.1125 mm 7/16′′ G500 for Bicycle/Cast/Rail Steel Ball, QS Factory Direct Sales G1000 7.9375mm 5/16 AISI1010/AISI101 Q235 Carbon Steel Ball 15.0812mm 19/32′′ 15.875mm 5/8′′ G500 for Home Furniture, Casters Steel Ball, QS Factory Direct Sales G1000 7.9375mm 5/16 AISI1010/AISI101 Q235 Carbon Steel Ball 7.937mm 5/16′′ 9.525mm 3/8′′ G500 for Drawer Slide/Valve Steel Ball and so on.