Building of transport and distribution lines for electricity
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
Implementation in buildings or in other projects of building of: thermal insulation materials, acoustic and antivibrating insulation materials
Work of insulation of pipes for heating or cooling
Work of insulation of coolers or refrigerated warehouses
Other works of finishing in buildings n.e.s.
Building of coolers, vaults, etc.
Trade intermediaries for sanitary articles
Other repairs of n.e.s. goods
Electro-technical installation works at buildings
Plumbing works
Retail trade in sanitary products and sanitary installation materials in specialised shops
Installation of heating, air-conditioning and ventilation
Other types of works with regard to the completion of buildings