Manufacture of neon lights, neon signs, indicator signs of light, etc.
Installation of secondary power supply systems (electrical generators)
Setting of electric cables and appliances
Setting of monitoring systems and alarms against housebreakings
Setting of electrical installations of heating
Work of insulation of coolers or refrigerated warehouses
Installation of signs, lighted or not
Building of coolers, vaults, etc.
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
Development of projects requiring acoustic engineering, technics of air-conditioning, cooling, refrigeration, sanitation and fight against pollution, etc.
Creation and setting of advertisements: posters, advertising signs, lighting newspapers, lighting signs, display on buses, etc.
Other repairs of n.e.s. goods
Construction of civil-technical works for liquids
Electro-technical installation works at buildings
Electro-technical installation works, with the exception of those executed at buildings
Plumbing works
Installation of heating, air-conditioning and ventilation
Other types of building installations
Intermediation of common goods
Wholesale in electronic materials, inclusive of material for installation
Various ancillary activities in regard to housing facilities