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Machine Breaks Out Last Bit in Longest Tunnel
Machine Breaks Out Last Bit in Longest Tunnel.
Machine Breaks Out Last Bit in Longest Tunnel
Switzerland - Workers break through last bit of rock in world's longest tunnel
Joyous Swiss Hail Longest Tunnel Breakthrough
Switzerland has its record-breaking tunnel
Swiss complete world's longest tunnel Congradulation from PlumberX
This Giant Machine Can Drill a Tunnel Anywhere #shorts
Six months on since historic breakthroughs for HS2’s longest tunnel
Swiss celebrate longest tunnel breakthrough
Dirty Great Machines - Tunnel Boring Machines | Technology Documentary | Reel Truth. Science
Tunnel drilling with a water grinder- Good tools and machinery make work easy
