G100 G500 G1000 18mm 16mm 20mm Solid Iron Ball Carbon Steel Ball for Bicycles Shandong Jinnai International Trade Co., Ltd. Base Info Description Pre：Replacement Parts 5mm Diameter Bike Carbon Steel Ball Bearing Drawer Rails, Skates, Roller Conveyors, Castors, Locks, Bearing Units. Utilized in Burnishing Next：AISI 1010/1015 G100 G200 G500 Carbon Steel Balls 4.763mm, 3/16" Ball Bearing Agitators, Sliding Rails, Drawer Rails, Skates
