短語詞組短語steel roof framework 鋼屋架steel tube framework 鋼管架steel structure framework 鋼結(jié)構(gòu)骨架steel truss framework 鋼桁架結(jié)構(gòu);鋼桁架lightweight -steel framework 輕鋼構(gòu)架steel -tube framework 鋼管架structural l steel framework 鋼構(gòu)架structural steel framework 鋼構(gòu)架;鋼框架steel framework composite pipe 鋼骨架復合管 返回 steel framework