43.21.Z - Electrical installation
33.14.Z - Repair and maintenance of electrical equipment
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
43.11.Z - Demolition
43.12.Z - Site preparation
43.22.Z - Plumbing, heat and air-conditioning installation
43.29.Z - Other construction installation
43.31.Z - Plastering
43.32.Z - Joinery installation
43.99.Z - Other specialised construction activities not elsewhere classified
46.52.Z - Wholesale of electronic and telecommunications equipment and parts thereof
46.69.Z - Wholesale of other machinery and equipment
95.21.Z - Repair and maintenance of consumer electronics
