43.31.Z - Plastering
33.13.Z - Repair and maintenance of electronic and optical equipment
81.29.Z - Other cleaning activities
81.21.Z - General cleaning of buildings
43.99.Z - Other specialised construction activities not elsewhere classified
43.39.Z - Other building completion and finishing
43.34.Z - Painting and glazing
43.33.Z - Floor and wall covering
43.32.Z - Joinery installation
33.14.Z - Repair and maintenance of electrical equipment
23.20.Z - Manufacture of refractory products
33.12.Z - Repair and maintenance of machinery
33.11.Z - Repair and maintenance of fabricated metal products
25.99.Z - Manufacture of other fabricated metal products not elsewhere classified
25.62.Z - Mechanical working of metal elements
25.11.Z - Manufacture of metal structures and parts of structures
24.42.B - Aluminium and aluminium alloy goods production
24.33.Z - Manufacture of cold forming products
24.20.Z - Manufacture of tubes and pipes, conduits, closed sections and connectors, of steel