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Two generations of tunnelling at Herrenknecht
www.tunneltalk.com
Martin Herrenknecht and successor and son Martin-Devid talk to international journalist Roland Herr about the future of Herrenknecht
Shaping the Future with Foam Concrete
www.mai.at
Roland Herr – International Freelancing Journalist and Author. . Pictures. Figure 1: By pressing a button, ...
Vorsprung durch innovative Mischpumpen-Technologie
www.mai.at
Roland Herr – Internationaler Freier Journalist und Autor. . Bilder. Bild 1: Einsatz der MAI®440GE im Baulos ...
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