片语
steel rectangle column矩形钢柱
steel rectangle矩形钢
square-rectangle steel tube方矩形管
rectangle steel tumb colume矩形钢管柱
rectangle steel tube truss joint矩形钢管桁架节点
concrete-filled rectangle steel tubular column方钢管混凝土柱
cold bending rectangle steel pipe冷弯矩形钢管
Rectangle Steel Tube矩形管