Sash : It is obtained by using 2mm pvc sheet covered with 0.2 mm Adofilm pvc foil on the wooden spar.
Frame and cornice : Made of wood composite (CRP) material and covered by Adofilm PVC foil with a high PU (Polyurethane) E1 quality glue. The cornices have an adjustable feature to be attached to the frame on both sides.