Herrenknecht recycles a used Mixed Shield Tunnel Boring Machine and reuses it.
Recycling is good for the environment https://tunnelcontact.com/discussion/view/5477/recycled-herrenknecht-mixed-shield-is-used-in-netherlands-tunnel-projectTags: Herrenknecht environment, tunnel boring maching environment
cover tunnel photo by: Matt Brown from London, England / CC BY
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