6
Building and construction materials and elements of metal; Building materials of metal; Bridge units of metal; Structures and transportable buildings of metal; Ladders and scaffolding, of metal; Access platforms [scaffolding] of metal; Working platforms [structures]; Safety scaffolding of metal; Metal hardware; Doors, gates, windows and window coverings of metal; Gates of metal; Entrances of metal; Security closures of metal; Cables, wires and chains, of metal; Nuts, bolts and fasteners, of metal
37
Building, construction and demolition; Construction services; Construction of steel fabrications; Consultancy and information services relating to construction; Building construction advisory services; Advisory services relating to the construction of public works; Welding of steel structures for constructional purposes; Erection of structural steel constructions; Installation of security and safety equipment; Installation of physical access control; Maintenance and repair of parts and fittings for buildings; Maintenance and repair of security installations; Maintenance and repair of physical access control; Servicing and repair of mechanical access platforms; Repair of water supply installations; Welding for repair purposes; Repair of sanitary installations; Repair information; Advisory services relating to the installation of security and safety equipment