短語(yǔ)詞組短語(yǔ)groove e steel 槽鋼groove steel latticed beam 槽鋼格搆梁spiral -groove steel wire 螺鏇肋鋼絲steel groove 槽鋼angle steel groove 角鋼孔型hardened steel groove 淬火槽鋼 返回 groove steel