41.10.Z - Realization of building projects related to erection of buildings
42.99.Z - Works related to construction of other civil engineering projects not elsewhere classified
77.34.Z - Rental and leasing of water transport equipment
77.21.Z - Rental and leasing of recreational and sports goods
74.90.Z - Other professional, scientific and technical activities not elsewhere classified
71.12.Z - Engineering activities and related technical consultancy
71.11.Z - Architectural activities
49.41.Z - Freight transport by road
46.19.Z - Agents involved in the sale of a variety of goods
46.12.Z - Agents involved in the sale of fuels, ores, metals and industrial chemicals
43.91.Z - Roofing activities
43.29.Z - Other construction installation
43.13.Z - Test drilling and boring
43.12.Z - Site preparation
43.11.Z - Demolition
23.20.Z - Manufacture of refractory products
42.91.Z - Works related to construction of water projects
42.21.Z - Works related to construction of transmission pipelines and distribution networks
42.13.Z - Works related to construction of bridges and tunnels
42.12.Z - Works related to construction of railways and underground railways
42.11.Z - Works related to construction of roads and motorways
41.20.Z - Building works related to erection of residential and non-residential buildings
25.62.Z - Mechanical working of metal elements
25.61.Z - Treatment and coating of metals
25.11.Z - Manufacture of metal structures and parts of structures
24.10.Z - Manufacture of pig iron, ferro-alloys, basic iron and steel and metallurgic articles
23.63.Z - Manufacture of ready-mixed concrete
23.61.Z - Manufacture of concrete products for construction purposes
