Grille GWS is used in air conditioning ventilation system. They are intended for installation of construction openings in premises, as well as ventfasade systems. Grilles are made of aluminium profile in the form of a frame and rigidly fixed blades at an angle of 65 degrees. The frame of the grating is made of reinforced profile. The blades P 101 are assembled on the frame made of profile P121 using spacer N 827. The grilles are painted in white colour. Painting in any RAL colours is possible. It is also possible to produce grilles of non-standard size.