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Single Wing Opening System

This model, known as the French model, consists of 1 case and 2 kanads. The fixed wing is locked with the hidden lever arm. The movable wing closes in such a way as to push on the other wing. There is no fixed record in the middle for the join. With this feature, when two wings are opened, there is an unregistered indifferent area. All other features are also available as standard on this window model.