供应压力容器用钢板的钢号：20R16MnR15MnVR15MnVNR18MnMoNbR13MnNiMoNbR15CrMoR低温压力容器用低合钢板的钢号:16MnDR15MnNiDR09Mn2VD09MnNiDR锅炉用钢板的钢号:20g22Mng19Mng15CrMng16Mng13MnNiCrMoNbg12Cr1MoVg)