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ventiflex
Protan Ventiflex news archive
Protan Ventiflex in Swiss tunnelproject
Delivery of Protan Ventiflex Systems on a large scale
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Ventiflex for 60 years
The foundations for Protan`s business were laid between the wars and the production of Ventilation systems started back in 1949.
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Ventiflex quality 9109FR for mines and tunnels
Protan has won the first two contracts for the new Ventiflex 9109FR.
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