The Nanma Zongshan tunnel of Baoji-Lanzhou High-speed Railway, 1323.4 Meters in total, passed through areas of steep mountains and poor traffic and construction conditions, thus the protection of bridge-tunnel joint-area became the top priority for the safety of Baoji-Lanzhou High-speed Railway.

OST, as an influential and competitive enterprise in China’s flexible protection field, constructed the flexible steel-structure shed tunnel for Nanma Zongshan tunnel. 

The flexible steel-structure shed tunnel is completed currently. The shed tunnel integrated with the railway, which makes an attractive view under the warm sunshine.

For the past 12 years, OST is always focusing on flexible protection industry of China which makes OST competitive and outstanding in this filed.

OST adheres to the enterprise spirit “care for life, guard safety” and the quality objective “pursue quality, accomplish excellence”, and endeavors to provide customers first-class slope protection solutions. We believe that we can finally achieve win-win development with customers and partners through constant efforts.