43.22.Z - Plumbing, heat and air-conditioning installation
24.20.Z - Manufacture of tubes and pipes, conduits, closed sections and connectors, of steel
25.11.Z - Manufacture of metal structures and parts of structures
25.61.Z - Treatment and coating of metals
33.11.Z - Repair and maintenance of fabricated metal products
33.12.Z - Repair and maintenance of machinery
33.20.Z - Installation of industrial machinery and equipment and outfit
42.21.Z - Works related to construction of transmission pipelines and distribution networks
43.11.Z - Demolition
43.29.Z - Other construction installation
43.91.Z - Roofing activities
43.99.Z - Other specialised construction activities not elsewhere classified
49.41.Z - Freight transport by road
74.90.Z - Other professional, scientific and technical activities not elsewhere classified