Strenghtened plasterboard panel preferably of the type used to make walls, partitions, false ceilings and coatings in general

摘要

A plasterboard panel (1) has longitudinal "V" shaped grooves (2), mutually parallel and obtained by means of millings, that define side portions (3) refolded along such parallel grooves (2) and glued to the inner surface of the panel. Each side portion (3) has a couple of grooves (2) crossing the material for its partial thickness, without cutting the superficial film covering the external surface of the panel (1) and so finishing up its longitudinal edges.