60.325mm 2 3/8" G60 AISI 52100 Chrome Steel Ball LUOYANG ZHISHENG STEEL BALL LIMITED LIABLITY COMPANY Base Info Description Pre：63.5mm 2 1/2" G60 AISI 52100 Chrome Steel Ball Next：44.45mm 1 3/4" G40 AISI 52100 Chrome Steel Ball
