雙相鋼通用材料點擊牌號查看詳情220523042552507329雙相美國材料UNS S31100UNS S31200UNS S31260UNS S31500UNS S31803UNS S32001UNS S32003UNS S32101UNS S32205UNS S32304UNS S32506UNS S32520UNS S32550UNS S32750UNS S32760UNS S32900UNS S32906UNS S32950UNS S39274UNS S39277 德國材料1.41621.43621.46621.44621.44101.45011.4507