'Zipper' Truck Builds Tunnels

This innovative system can make quick and durable tunnels that can be used as pedestrian passageways, wine cellars, shelters and more.

Tech Insider
Mar 4, 2016

Traditionally, building tunnels is a lengthy and tedious process. Lock-Block Ltd, a construction material production company, has introduced an innovative system to make quick and durable tunnels that can be used as pedestrian passageways, wine cellars, shelters and more. 

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