Manufacture and installation of industrial equipments for cold production
Development of projects requiring acoustic engineering, technics of air-conditioning, cooling, refrigeration, sanitation and fight against pollution, etc.
Repair of electronic devices
Electro-technical installation works at buildings
Electro-technical installation works, with the exception of those executed at buildings
Installation of heating, air-conditioning and ventilation
Other types of building installations
Engineers and similar technical advisors, with the exception of surveyors