41.20.Z - Building works related to erection of residential and non-residential buildings
33.12.Z - Repair and maintenance of machinery
33.14.Z - Repair and maintenance of electrical equipment
33.20.Z - Installation of industrial machinery and equipment
41.10.Z - Realization of building projects related to erection of buildings
43.21.Z - Electrical installation
43.22.Z - Plumbing, heat and air-conditioning installation
43.39.Z - Other building completion and finishing
43.99.Z - Other specialised construction activities n.e.c.
71.12.Z - Engineering activities and related technical consultancy