44.45mm 1 3/4" G40 AISI 52100 Chrome Steel Ball LUOYANG ZHISHENG STEEL BALL LIMITED LIABLITY COMPANY Base Info Description Pre：60.325mm 2 3/8" G60 AISI 52100 Chrome Steel Ball Next：28.575mm 1 1/8" G10 AISI 52100 Chrome Steel Ball
