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.
Production of non-domestic machines and devices used for cooling and air-conditioning
Repair of metal products
Installation of industrial machines, devices and equipment
Construction of civil-technical works for electricity and telecommunications
Electro-technical installation works at buildings
Electro-technical installation works, with the exception of those executed at buildings
Other types of building installations
Do-it-yourself businesses and d.i.y. shops of common building materials
Wholesale in installation materials used by plumbers and for the installation of heating
Plumbing works
Installation of heating, air-conditioning and ventilation