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13,21 meter Herrenknecht TBM breaks through at CBBT in the USA

13,21 meter Herrenknecht TBM breaks through at CBBT in the USA
By Lutz Genscher

13,21 meter Herrenknecht Tunnel Boring Machine breaks through at CBBT in the USA

source: Herrenknecht press release https://www.herrenknecht.com/en/newsroom/pressreleasedetail/durchbruch-fuer-eines-der-sieben-weltwunder-der-neuzeit/

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