Setting of telecommunication systems and computer installations
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)
Setting of electrical installations of heating
Other work of n.e.s. installation, including accessories installation
Work of general installation
Other works of finishing in buildings n.e.s.
Electro-technical installation works at buildings
Electro-technical installation works, with the exception of those executed at buildings
Installation of heating, air-conditioning and ventilation
Other types of building installations
Other types of works with regard to the completion of buildings