Work of maintenance and mechanical repairs for third parties
Installation of secondary power supply systems (electrical generators)
Setting of electric cables and appliances
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 of lifts and escalators
Trade intermediaries for electric and electronic equipments, including installation equipments for industrial use
Design and realization of projects interesting electric and electronic engineering, mining, chemical and industrial engineering, the engineering of systems, security technics, etc.
Creation and setting of advertisements: posters, advertising signs, lighting newspapers, lighting signs, display on buses, etc.
Electro-technical installation works at buildings
Electro-technical installation works, with the exception of those executed at buildings
Plumbing works
Wholesale in electronic devices and communication devices as well as parts thereof
Wholesale in electronic materials, inclusive of material for installation
Reparations of computers and peripheral devices
Retail trade in electronic domestic devices in specialised shops
Installation of heating, air-conditioning and ventilation
Insulation works
Wholesale in electronic domestic devices as well as audio and video devices