China's Largest TBM Completes Historic Yangtze Tunnel
China's largest Tunnel Boring Machine, the Herrenknecht Mixshield 12.6-meter diameter Changjiang, successfully completed the historic Kaiyuanba Yangtze River R…
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China's largest Tunnel Boring Machine, the Herrenknecht Mixshield 12.6-meter diameter Changjiang, successfully completed the historic Kaiyuanba Yangtze River R…