Installation of secondary power supply systems (electrical generators)
Setting of electric cables and appliances
Setting of telecommunication systems and computer installations
Setting of monitoring systems and alarms against housebreakings
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
Work of insulation of pipes for heating or cooling
Installation of signs, lighted or not
Trade intermediaries for electric and electronic equipments, including installation equipments for industrial use
Trade intermediaries for supplies for plumbering, equipments of electric system for houses and heating systems
Wholesale trade of electric household appliances
Retail trade of household appliances
Repair of audio and video appliances
Repair of household appliances
Repair of metal products
Repair of electronic devices
Electro-technical installation works, with the exception of those executed at buildings
Intermediation of wood and building material
Wholesale in lighting devices
Retail trade in other types of building materials in specialised shops
Retail trade in electronic domestic devices in specialised shops
Retail trade in lighting products in specialised shops
Repair of communication devices
Repair of consumer electronics
Repair of domestic devices and of equipment used in house and in the garden
Wholesale in common building materials
Retail trade in sanitary products and sanitary installation materials in specialised shops
Wholesale in electronic devices and communication devices as well as parts thereof
Plumbing works
Installation of heating, air-conditioning and ventilation