Externally Rolled Aluminum
The box is made of aluminum and has an oval or bevelled shape at 45ᵒ.
The lamellas are made of 39 mm or 55 mm aluminum and are filled with polyurethane foam.
Action can be electric or manual.
The anti-insect nets are roller-type, acting vertically with a cord, is based on hermetic seals and is fitted with a silicone brake in the standard version.