Cleaning a Chinese railway tunnel.
Previously:
1952 subway tunnel cleaning machine - photo
Constructing a tunnel under a highway - GIF
Holland Tunnel No. 1 electric tow truck and fire engine - photo
How tunnels are dug - GIF
Making a truck fit inside a low-clearance tunnel - GIF
Tunnel blasting shockwave - video
Tunnel boring machine breaking through - GIF
Tunnel washing truck - videos
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