冷镦钢:SWRCH6R SWRCH8R SWRCH10R SWRCH12R SWRCH15R SWRCH17R SWRCH6ASWRCH8ASWRCH12ASWRCH10ASWRCH15ASWRCH16ASWRCH18ASWRCH19ASWRCH20ASWRCH22ASWRCH25ASWRCH10K SWRCH12K SWRCH15K SWRCH16K SWRCH17K SWRCH18K SWRCH20K SWRCH22K SWRCH24K SWRCH25K SWRCH27K SWRCH30K SWRCH33K SWRCH35K SWRCH38K SWRCH40K SWRCH41K SWRCH43K SWRCH45K SWRCH48K SWRCH50K SWCH6R SWCH8R SWCH10R SWCH6ASWCH8ASWCH10ASWCH12R SWCH15R SWCH12ASWCH15ASWCH10K SWCH12K SWCH17R SWCH16ASWCH18ASWCH20ASWCH15K SWCH19ASWCH16K SWCH17K SWCH18K SWCH20K SWCH22ASWCH22K SWCH25K易切削结构钢: SUM11 SUM12 SUM21 SUM22 SUM22LSUM23 SUM23LSUM24LSUM25 SUM31 SUM31LSUM32 SUM41 SUM42 SUM43 1912 1914 1922 1926 1940 1957 1973130M15212M36214M15216M44210A15210M15214A15280M01碳素钢:SM9CK SM15CK SM20CK SM10CSM12CSM15CSM17CSM20CSM22CSM25CSM28CSM30CSM33CSM35CSM38CSM40CSM43CSM45CSM48CSM50CSM53CSM55CSM58C