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Chinese build world's highest road tunnel in harsh environment
Construction of world largest high-altitude highway tunnel completes
China Leaves American President Shocked, Builds The Longest Undersea Tunnel In The World
World's highest altitude highway tunnel took 5 years to be built in Xizang | China Documentary
Why India Is Building A Tunnel In The World's Highest Mountain Range | Risky Business | Insider News
World's highest! Chinese engineers build highway tunnel in Tibet
Algeria's longest highway tunnel built by Chinese company cut through
Why Did The Chinese Build A Road Through A Cloud For 4 Billion Dollars
World's Highest Highway Tunnel Opens to Traffic in China's Tibet
China is building the world's longest highway tunnel in Xinjiang!
Construction on world’s largest highway tunnel completes in November
World's highest highway tunnel in SW China cuts driving time across Mt. Erlang
