steel tubular arched bridge钢管拱桥
steel tubular arch bridge钢管拱桥
concrete filled tubular arch bridge钢管混凝土拱桥
concrete-filled steel tubular arch bridge钢管混凝土拱桥
tubular bridge WESTBANK函梁桥
steel tubular concrete arch bridge钢管混凝土拱桥
Frame Steel bridge tubular frame框架钢桥面混凝土框架