Construction, repair and installation services in the building sector, namely, building of residential, commercial and industrial constructions, remodeling and renovation of houses and commercial buildings, remodeling, and renovation of residential, commercial or industrial buildings; renovation and remodeling of roofs and facade elements of buildings; installing roofs and facade elements of buildings; providing information on construction, repairs and installation in the construction industry

Processing and transformation of metal building materials, namely, treatment of ores and metals, namely, metal coating, all metal treating and all mechanical , thermo-mechanical or chemical transformations of the properties and characteristics of metal, metal tempering, metal treatment services, namely, finishing of metal surfaces, metal coating services, brazing, chromium plating, nickel plating, tin plating, zinc plating, galvanization, laminating, armor plating, cutting, burnishing by abrasion, polishing, magnetization, plating drawing, stripping finishes, welding of metals, recycling of metal goods and treatment of materials during the process for manufacturing metal goods, namely, machining and forming oxygen-cutting, pickling, welding, stamping, forging, pressing, deburring, machining, laminating, die-forging and shaping of metals, vacuum treatment and nitrogen case-hardening, assembly of metal sets and sections

Scientific and technological services and related research and design services in the field of engineering services, building construction, roofing, metal treatment, metal coating and surveying, namely, professional advisory and consulting services in connection with engineering, carrying out evaluations, appraisals, research work and writing reports in science and technology and scientific research, industrial research relating to civil and mechanical engineering in the fields of residential and industrial construction, metal construction, metal treatment and coating, research in connection to the development of new construction materials, providing information relating to technical know-how concerning the functioning and installations of metal building materials, and engineering project studies relating thereto; industrial analysis and research services in the field of architecture and engineering; construction consultancy services; drafting of construction plans for residential, commercial and industrial constructions; industrial design services in the building sector; engineering services in the field of building construction