曹妃甸矿石码头一期工程长94 m质量680 t钢管混凝土拱桥安装
조비전광석마두일기공정장94 m질량680 t강관혼응토공교안장
Installation of Steel-Pipe-Concrete Arch Bridge Span with a Length of 94 m and a Mass of 680 t for Phase I of Caofeidian Ore Terminal
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