43.39.Z - Other building completion and finishing
43.22.Z - Plumbing, heat and air-conditioning installation
80.20.Z - Security systems service activities
61.90.Z - Other telecommunications activities
61.30.Z - Satellite telecommunications activities
61.20.Z - Wireless telecommunications activities, excluding satellite telecommunications activities
61.10.Z - Wired telecommunications activities
43.99.Z - Other specialised construction activities not elsewhere classified
43.91.Z - Roofing activities
43.34.Z - Painting and glazing
43.33.Z - Floor and wall covering
43.32.Z - Joinery installation
43.31.Z - Plastering
43.29.Z - Other construction installation
25.62.Z - Mechanical working of metal elements
43.21.Z - Electrical installation
43.12.Z - Site preparation
43.11.Z - Demolition
42.99.Z - Works related to construction of other civil engineering projects not elsewhere classified
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
41.20.Z - Building works related to erection of residential and non-residential buildings
33.20.Z - Installation of industrial machinery and equipment and outfit
33.14.Z - Repair and maintenance of electrical equipment
33.13.Z - Repair and maintenance of electronic and optical equipment
33.12.Z - Repair and maintenance of machinery
