Building of transport and distribution lines for electricity
Setting of electric cables and appliances
Installation in buildings or in other projects of building of: pumbling systems and hygiene appliances, pipes for gas and water (except for heating), setting of automatic extinguishers, etc.
Installation in buildings or in other projects of building of: heating systems by electricity, gas and fuel, boilers, materials and pipes for ventilation and air conditioning, etc.
Installation in buildings or in other projects of building of: heating, cooling and ventilation systems (except heating)
Construction of civil-technical works for electricity and telecommunications
Electro-technical installation works at buildings
Electro-technical installation works, with the exception of those executed at buildings
Plumbing works
Installation of heating, air-conditioning and ventilation
Roofing
Restoration of buildings
Other types of specialised building activities
Wholesale in electronic materials, inclusive of material for installation
Wholesale in sanitary
Wholesale in installation materials used by plumbers and for the installation of heating
Retail trade in sanitary products and sanitary installation materials in specialised shops
Retail trade in electronic domestic devices in specialised shops