35
Advertising and administrative management; Public relations services; Business consultancy relating to the setting up of franchises; Exhibitions for commercial or advertising purposes; Business management including assistance and consultancy, all the aforesaid relating to a business for the repair, installation, cleaning and maintenance of structures and construction of works
37
Preservation, cleaning, repair and maintenance of buildings, museums, sculptures, industrial chimneys, exterior and interior surfaces; Structural upgrading for safety; Cleaning of ventilation shafts; Cleaning and unblocking of industrial installations; Application of protective paint to buildings; Preparation of surfaces for coating and covering; Application of waterproof linings; Assembly and dismantling of elements (scaffolding); Welding for repair purposes; Concrete renovation; Building of structures of metal and concrete; Fireproofing of structures of metal; Underwater construction, installation and repairs, management and supervision of construction works, engineering relating to projects for the maintenance of structures
42
Scientific and technological services and research and design relating thereto; Surveying and exploration; Technical inspection services; Engineering drawing (engineering); Technical and technological project studies; Engineering project studies; Auditing relating to energy; Technical advice relating to safety