41.10.Z - Realization of building projects related to erection of buildings
41.20.Z - Building works related to erection of residential and non-residential buildings
42.11.Z - Works related to construction of roads and motorways
42.21.Z - Works related to construction of transmission pipelines and distribution networks
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
43.11.Z - Demolition
43.12.Z - Site preparation
43.22.Z - Plumbing, heat and air-conditioning installation
43.29.Z - Other construction installation
43.34.Z - Painting and glazing
43.39.Z - Other building completion and finishing
77.32.Z - Rental and leasing of construction machinery and equipment
81.21.Z - General cleaning of buildings
