1 7/8" 47.625mm AISI S-2 Tool (Rockbit) Steel Balls LUOYANG ZHISHENG STEEL BALL LIMITED LIABLITY COMPANY Base Info Description Pre：55sm5fa-60 AISI S-2 Tool (Rockbit) Balls 11.5094mm Next：2" 50.8mm AISI S-2 Tool (Rockbit) Steel Balls
