China's largest slurry tunnel boring machine (TBM) rolls off the production line in Zhengzhou, capital of central China's Henan Province, Sept. 29, 2018. The machine has a diameter of 15.8 meters, ...
Add articles to your saved list and come back to them any time. Within months, a 130-metre boring machine named Kathleen will begin one of the most complex parts of tunnelling for Sydney's ...
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