Building of conveyance, distribution and water disposal networks
Setting of electric cables and appliances
Setting of telecommunication systems and computer installations
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
Wholesale trade of bathroom facilities: baths, sinks, wcs, etc.
Wholesale trade of appliances for heating
Wholesale trade of equipments for sanitory systems and central heating: pipes, pipe fittings, tabs, rubber pipes, etc.
Retail trade of household appliances
Chimney sweeping and cleaning of hearths, ovens, incinerators, boilers, air ducts and smoke removal appliances
Installation of heating, air-conditioning and ventilation
Insulation works
Wholesale in electronic materials, inclusive of material for installation
Wholesale in industrial machines and devices used for heating, cooling and freezing
Wholesale in common building materials
Wholesale in sanitary
Wholesale in installation materials used by plumbers and for the installation of heating
Retail trade in sanitary products and sanitary installation materials in specialised shops
Retail trade in other types of building materials in specialised shops
Repair of consumer electronics
Repair of domestic devices and of equipment used in house and in the garden
Construction of distribution facilities for water and gas
Construction of sewerage systems
Construction of civil-technical works for liquids
Electro-technical installation works, with the exception of those executed at buildings