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.
Setting of electrical installations of heating
Assembling of frames
Works of recovering in all materials
Setting of rainwater disposal elements
Plumbing works
Making walls waterproof
Cleaning of buildings
Other types of cleaning of buildings; industrial cleaning
Holdings
Trade in own real estate
Rental and exploitation of own or leased non-residential real estate, with the exception of social housing