AISI Type 52100 Chrome Steel Balls for Thrust Ball Bearings 2-1/8" (53.975mm) G40 LUOYANG ZHISHENG STEEL BALL LIMITED LIABLITY COMPANY Base Info Description Pre：China S-2 Tool (Rockbit) Balls with Dongbei Special Steel Raw Material Next：CF4 Carbon Steel Heim Rose Joint 1/4-28 Rod End Bearings CFR4 CFL4 Ef4 Efr4 Efl4
