易削钢 free cutting steel

易削不锈钢 easy-cutting stainless steel

易切削钢 [材] Free-Machining Steel

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

易切削的 free machining ; free-cutting

易削黄铜 free cutting brass

易切削结构钢 Free-cutting structural steels

易切削 free machining ; free-cutting ; cutting steel

易切削铜 free cutting copper