System with three levels of breathing. Inner, middle and exterior permanently elastic dichotases provide permanent elastic breathing between the wings and the stalk.
The value of heat and sound isolation will respond to the requirements of the broadest user’s circle.
Locking in 5 places to the door gives security to the burglar. (Rc)
A large selection of rugged doors gives a richer look.
Large selection of colors and design, doors and facades give a new look