33.20.Z - Installation of industrial machinery and equipment and outfit
42.99.Z - Works related to construction of other civil engineering projects not elsewhere classified
78.30.Z - Other human resources provision
77.32.Z - Rental and leasing of construction machinery and equipment
74.90.Z - Other professional, scientific and technical activities not elsewhere classified
68.20.Z - Rental and operating of own or leased real estate
52.21.Z - Service activities incidental to land transportation
49.41.Z - Freight transport by road
46.77.Z - Wholesale of waste and scrap
46.73.Z - Wholesale of wood, construction materials and sanitary equipment
46.72.Z - Wholesale of metals and metal ores
43.99.Z - Other specialised construction activities not elsewhere classified
43.91.Z - Roofing activities
43.29.Z - Other construction installation
43.21.Z - Electrical installation
43.12.Z - Site preparation
43.11.Z - Demolition
08.12.Z - Operation of gravel and sand pits; mining of clays and kaolin
42.22.Z - Works related to construction of telecommunications and electricity lines
42.21.Z - Works related to construction of transmission pipelines and distribution networks
42.12.Z - Works related to construction of railways and underground railways
35.11.Z - Production of electricity
33.12.Z - Repair and maintenance of machinery
28.92.Z - Manufacture of machinery for mining, quarrying and construction
28.12.Z - Manufacture of fluid power equipment
25.99.Z - Manufacture of other fabricated metal products not elsewhere classified
25.62.Z - Mechanical working of metal elements
25.61.Z - Treatment and coating of metals
25.21.Z - Manufacture of central heating radiators and boilers
25.11.Z - Manufacture of metal structures and parts of structures
23.61.Z - Manufacture of concrete products for construction purposes
09.90.Z - Support activities for other mining and quarrying