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More Than 20 TBMs Will Work on Four New Lines in Paris Metro Expansion
More than 20 TBMs have been put to work so far to build lines 15, 16, 17 and 18 as part of a Grand Paris Express metro expansion in the French capital.
cover tunnel photo by: Matt Brown from London, England / CC BY
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https://www.enr.com/articles/51429-more-than-20-tbms-will-work-on-four-new-lines-in-paris-metro-expansion
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