东莞天友金属材料有限公司

易切削结构钢：SUM11、SUM12、SUM21、SUM22、SUM22L、SUM23、SUM23L、SUM24L、SUM25、SUM31、SUM31L、SUM32、SUM41、SUM42、SUM43

冷墩钢和紧固件用钢：SWRCH6R、SWRCH8R、SWRCH10R、SWRCH12R、SWRCH15R、SWRC SWRCH10R、SWRCH12R H17R、SWRCH6A、SWRCH8A、SWRCH10A、SWRCH12A、SWRCH15A、SWRCH16A、SWRCH18A、SWRCH19A、SWRCH20A、SWRCH22A、SWRCH10K、SWRCH12K、SWRCH15K、SWRCH16K、SWRCH17K、SWRCH18K、SWRCH20K、SWRCH22K、SWRCH24K、SWRCH25K、SWRCH27K、SWRCH30K、SWRCH33K、SWRCH35K、SWRCH38K、SWRCH40K、SWRCH41K、SWRCH43K、SWRCH45K、SWRCH48K、SWRCH50K / SNB5-1、SNB7-2、SNB16-3、SNB21-1~5、SNB22-1~5、SNB23-1~5、SNB24-1~5