4.72mm/4.74mm/4.76mm/4.78mm G100 Carbon Steel Ball for Bearing Liangshan Keda Steel Ball & Bearing Co., Ltd Base Info Description Pre：1.588mm-38.1mm 201/302/304/316/420/440 Stainless Steel Ball 3.969mm 5.953mm 4.763mm 3.175mm 4mm Next：3.969mm Carbon Steel Ball G28/G40/G60/G100/G200/G500/G1000
