1) 直径: 1.0mm-250mm 2) 级别: g20-g1000 3) 硬度: hrc55-63; 4) 证书: iso-9001,ts-16949,iso14001; 5) 应用: 用于自行车、轴承、滑轮、滑轨、工艺品、货架、万向球、箱包、小五金件、也可用来研磨其它介质。 carbon steel balls 1) size: 1.0mm-250mm 2) grade: g10-g1000 3) hardness: hrc58-63. 4) general application: bearings, automotive, casto, locks, drawer slides, welding, capabilities decorative, bicycle parts, light-duty, hardware, toy and etc.