工字钢IPE300S355NL川流库/莱芜莱钢0.422工字钢IPE300S355NL川流库/莱芜莱钢2.532工字钢IPE300S355NL川流库/莱芜莱钢4.937工字钢IPE360S355NL川流库/莱芜莱钢20.556工字钢IPE400S355NL川流库/莱芜莱钢3.182工字钢IPE450S355NL川流库/莱芜莱钢21.231工字钢IPE450S355NL川流库/莱芜莱钢21.231工字钢IPE450S355NL川流库/莱芜莱钢21.231工字钢IPE450S355NL川流库/莱芜莱钢1.552工字钢IPE450S355NL川流库/莱芜莱钢21.231工字钢IPE450S355NL川流库/莱芜莱钢21.231工字钢IPE500S355NL川流库/莱芜莱钢15.238工字钢IPE501S355NL川流库/莱芜莱钢13.224工字钢IPE502S355NL川流库/莱芜莱钢17.414工字钢IPE503S355NL川流库/莱芜莱钢1.814工字钢IPE504S355NL川流库/莱芜莱钢27.21工字钢IPE505S355NL川流库/莱芜莱钢7.075工字钢IPE550S355NL川流库/莱芜莱钢42.4工字钢IPE550S355NL川流库/莱芜莱钢21.37工字钢IPE550S355NL川流库/莱芜莱钢6.36工字钢IPE550S355NL川流库/莱芜莱钢9.328工字钢IPE550S355NL川流库/莱芜莱钢22.896工字钢IPE600S355NL川流库/莱芜莱钢2.928工字钢IPE600S355NL川流库/莱芜莱钢1.475)