Frame: Embracing for plasterboard up to cm. 13 - Made of hot-dip galvanized steel sheet "Sendzimir" system; Seats for thermo-expanding gasket and rebate gasket; Suitable for fixing to masonry by means of anchors or dowels; Detachable cover for support on the finished floor; Crosspiece to be removed for execution without rebate (except for doors with environmental characteristics); Black plastic strikers for lock latch and bolts; Thermo-expanding gaskets mounted on the vertical profiles of the frame and central vertical profile of the double-leaf doors, to be mounted on site for the upper crosspiece of the frame, mounted above and below the REI 120 leaves. Regulated by article 5 of Legislative Decree 185/1999, it provides that the customer-consumer (i.e. a natural person who purchases the g.