It is a widely tested and extremely reliable design solution. It is a highly reliable window which makes it possible for the weight to be distributed over a surface of 250 Kg. It is ideal for wide spaces with a panoramic view as the Double B sliding system made of aluminium and wood makes it possible to have one (built-in shutter), two and four shutters. Then there is a new possibility the raise and slide windows and doors that disappear inside a frame system called «SCRIGNO».
