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Tunnel waterproofing by Protan
Norwegian company Protan is a world leader in membrane technologies used for tunnel waterproofing.
Roof and walls of tunnels around the world fabricated by Protan tunnel systems.Membranes makes the rock caverns and tunnels water proof and safe.
A tunnel project which benefited Protan's Ventiflex:
Bosphorus Strait Tunnel
https://www.protan.com/about-protan/references/the-bosporos-strait/?section=
cover tunnel photo by: Matt Brown from London, England / CC BY
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https://www.protan.com/ventiflex/protan-tunnel-systems/
Tunnels waterproofed with protan tunnel systems
www.protan.comRoof and walls of tunnels around the world fabricated by Protan tunnel systems.Membranes makes the rock caverns and tunnels water proof and safe.