43.22.Z - Plumbing, heat and air-conditioning installation
42.22.Z - Works related to construction of telecommunications and electricity lines
74.90.Z - Other professional, scientific and technical activities not elsewhere classified
74.10.Z - Specialised design activities
71.20.B - Other technical testing and analysis
71.12.Z - Engineering activities and related technical consultancy
47.91.Z - Retail sale via mail order houses or via internet
46.90.Z - Non-specialised wholesale trade
46.74.Z - Wholesale of hardware and plumbing and heating equipment and supplies
46.73.Z - Wholesale of wood, construction materials and sanitary equipment
43.99.Z - Other specialised construction activities not elsewhere classified
43.29.Z - Other construction installation
42.99.Z - Works related to construction of other civil engineering projects not elsewhere classified
42.91.Z - Works related to construction of water projects
25.21.Z - Manufacture of central heating radiators and boilers
42.21.Z - Works related to construction of transmission pipelines and distribution networks
33.20.Z - Installation of industrial machinery and equipment and outfit
33.19.Z - Repair and maintenance of other equipment
33.14.Z - Repair and maintenance of electrical equipment
33.12.Z - Repair and maintenance of machinery
33.11.Z - Repair and maintenance of fabricated metal products
28.99.Z - Manufacture of other special-purpose machinery not elsewhere classified
28.21.Z - Manufacture of ovens, furnaces and furnace burners
25.61.Z - Treatment and coating of metals
25.30.Z - Manufacture of steam generators, except central heating hot water boilers
25.29.Z - Manufacture of other tanks, reservoirs and containers of metal