42.13.Z - Works related to the construction of bridges and tunnels
25.11.Z - Production of metal constructions and their parts
42.11.Z - Works related to the construction of roads and highways
42.12.Z - Works related to the construction of railways and underground railways
42.21.Z - Works related to the construction of transmission pipelines and distribution networks
42.22.Z - Works related to the construction of telecommunications and electrical lines
42.91.Z - Works related to the construction of water engineering objects
43.50.Z - Specialized construction works in the field of civil and water engineering
77.32.Z - Rental and leasing of construction machinery and equipment
77.39.Z - Rental and leasing of other machinery, equipment, and tangible assets, not elsewhere classified