Setting of telecommunication systems and computer installations
Setting of monitoring systems and alarms against housebreakings
Setting of lighting and signalling systems for roads, railroads, port and airport installations (including the setting of notice boards)
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
Trade intermediaries for electric and electronic equipments, including installation equipments for industrial use
Repair of metal products
Development of residential building projects
Development of non-residential building projects
Electro-technical installation works at buildings
Intermediation of wood and building material
Engineers and similar technical advisors, with the exception of surveyors
Electro-technical installation works, with the exception of those executed at buildings
Plumbing works
Installation of heating, air-conditioning and ventilation
Construction of residential buildings
Construction of other types of non-residential buildings