The scope of works includes execution and installation of metal supporting structure along the platform of metro station II-4 between km 3+434 and km 3+584, as well as overall installation along the platform and halls of composite material ETALBOND , suspended ceiling system type HUNTER DOUGLAS 300L and patterned ceiling type CLIP IN. Metro station II-4 is “platform” type with two halls, overall length of 150,25m and 11,25m of height.