中国碳素结构钢；Q195Q215Q235Q275U11952U12152U12155U12352U12355U12358U12359U12752U12755U12758U12759钢板及钢带；CR260/450DPCR300/500DPCR340/590DPCR420/780DPCR550/980DPP175205P235P200P240P210P250P290优质碳素结构钢；U20080U20100U20150U20082U20102U20152U20202U20252U20302U20352U20402U20452U20502U20552U20602U20652U20702U20752U20802U20852U21152U21202U21252U21302U21352U21402U21452U21502U21602U21652U2170208F10F15F081015202530354045505560657075808515Mn20Mn25Mn30Mn35Mn40Mn45Mn50Mn60Mn65Mn70Mn盘条用钢；***DC7DC9DC10DC12DC15DC18DC20DC26DC32DC38D***2D***8DC50DC52DC56DC58DC60DC62DC66DC68DC70DC72DC76DC78DC80DC82DC86DC88DC92DU53042U53072U53092U53102U53112U53152U53182U53202U53262U53322U53382U53422U53482U53502U53522U53562U53582U53602U53662U53682U53702U53722U53762U53782U53802U53822U53862U53882U53922C2D1C3D1***D1C3D2C5D2C8D2C10D2C12D2C15D2C18D2C20D2C26D2C32D2C36D2C38D2***0D2***2D2***6D2***8D2C50D2C52D2C56D2C58D2C60D2C62D2C66D2C68D2C70D2C72D2C76D2C78D2C80D2C82D2C86D2C88DC92D2C98D2)