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Video: 'Florence': HS2 launches largest ever tunnel boring machine | Daily Mail Online
'Florence' has been launched at the HS2's South Portal site next to the M25 in Buckinghamshire, the largest ever Tunnel Boring Machine used on a UK rail project.
β https://www.dailymail.com/video/news/video-2419074/Video-HS2-launches-largest-tunnel-boring-machine-Florence.html