易切削钢 Automatic Steel ; [材] Free-Machining Steel

易切削钢丝 Free Cutting Steel Wire ; free cutting wire

含铅易切削钢 Lead Treated Steel ; containing lead free-cutting steel

加铅易切削钢 Ledloy Free Cutting Steel

莱德洛伊含铅易切削钢 Ledloy

易切削结构钢 Free-cutting structural steels

易削不锈钢 easy-cutting stainless steel

钙系易切削钢 [材] calcium series free cutting steel

硒易切削钢 Se Free-Cutting steel