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Ventiflex tunnel references 

Bruksområde: Tunnels  Gruppe: Ventiflex 
Sted: World wide  Produkt: Ventiflex 
Størrelse:   m2    
Protan Ventiflex tunnel reference list 
This list is an extract of some of the projects where construction companies all over the world has found Ventiflex ducting to be the safest way of providing fresh air
into the face.
The actual list is much longer, also taking into account that more than 50% of all tunnels being excavated, are less than 500m. Download the complete reference list here.