It is a successful system in heat, sound, air permeability and wind resistance tests. This system provides the possibility of making normal opening sash, double opening, double opening with concealed hinges, pivot opening, folding door and window joinery, Volkswagen opening, inward opening door, slam door, showcase. High energy saving can be achieved with heat insulated systems; Due to its conformity with European norms in terms of wind, water and air impermeability, thermally insulated window systems are generally preferred by architects in applications with direct connection with the outdoor. System selection can be made as desired according to different casing, wing depths and different performance demands.