Building of conveyance, distribution and water disposal networks
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)
Setting of electrical installations of heating
Construction of civil-technical works for liquids
Construction of civil-technical works for electricity and telecommunications
Preparing land for construction
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