G100 G500 G1000 7.85mm Solid Iron Ball Carbon Steel Ball for Bicycles Polishing and Milling Machineries 1.903G Shandong Jinnai International Trade Co., Ltd. Base Info Description Pre：Carbon Steel Pachinko Ball Wheel Bearing Carbon Steel Small Miniature Balls Bike Bicycle Ball Bearings Next：7.84mm AISI1010-AISI1015 Automotive Bearing Carbon Steel Ball for Bicycle Parts G100 G200 1.965g
