短語(yǔ)詞組短語(yǔ)ribbed steel tube 暗置密肋鋼管inner -ribbed copper tube 內(nèi)凸筋銅管an inner -ribbed copper tube 內(nèi)凸筋銅管thin walled inner -ribbed copper tube 內(nèi)肋銅管spirally inside -ribbed copper tube 內(nèi)螺旋凸筋銅管thin -walled inner-ribbed copper tube 薄壁內(nèi)肋片銅管ribbed tube superheater 加肋管過(guò)熱器inter spirally ribbed tube 螺旋內(nèi)肋管furnace ribbed tube 爐筋管 返回 ribbed tube