43.22.Z - Plumbing, heat and air-conditioning installation
25.21.Z - Manufacture of central heating radiators and boilers
25.62.Z - Mechanical working of metal elements
42.21.Z - Works related to construction of transmission pipelines and distribution networks
43.11.Z - Demolition
43.12.Z - Site preparation
43.21.Z - Electrical installation
43.29.Z - Other construction installation
43.31.Z - Plastering
43.32.Z - Joinery installation
43.34.Z - Painting and glazing
43.91.Z - Roofing activities
46.73.Z - Wholesale of wood, construction materials and sanitary equipment
46.74.Z - Wholesale of hardware and plumbing and heating equipment and supplies
71.12.Z - Engineering activities and related technical consultancy
77.32.Z - Rental and leasing of construction machinery and equipment
85.59.B - Other out-of-school forms of education, not elsewhere classified
