43.21.Z - Electrical installation
25.62.Z - Mechanical working of metal elements
27.90.Z - Manufacture of other electrical equipment
28.12.Z - Manufacture of fluid power equipment
28.29.Z - Manufacture of other general-purpose machinery not elsewhere classified
28.41.Z - Manufacture of metal forming machinery
28.49.Z - Manufacture of other mechanical tools
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
42.22.Z - Works related to construction of telecommunications and electricity lines
42.91.Z - Works related to construction of water projects
43.22.Z - Plumbing, heat and air-conditioning installation
43.99.Z - Other specialised construction activities not elsewhere classified
47.78.Z - Other retail sale of new goods in specialised stores
