49.41.Z - Freight transport by road
41.20.Z - Building works related to erection of residential and non-residential buildings
42.13.Z - Works related to construction of bridges and tunnels
42.91.Z - Works related to construction of water projects
42.99.Z - Works related to construction of other civil engineering projects not elsewhere classified
43.12.Z - Site preparation
43.22.Z - Plumbing, heat and air-conditioning installation
46.61.Z - Wholesale of agricultural machinery, equipment and supplies
46.63.Z - Wholesale of mining, construction and civil engineering machinery
46.73.Z - Wholesale of wood, construction materials and sanitary equipment
46.90.Z - Non-specialised wholesale trade