Implementation in buildings or in other projects of building of: thermal insulation materials, acoustic and antivibrating insulation materials
Development of projects requiring acoustic engineering, technics of air-conditioning, cooling, refrigeration, sanitation and fight against pollution, etc.
Insulation works
Other types of specialised building activities
Intermediation of wood and building material
Wholesale in other building materials
Retail trade in other types of building materials in specialised shops
Engineers and similar technical advisors, with the exception of surveyors
Laying of floors and fitting wooden wall-coverings
Hanging wall-paper, as well as flooring and wall-coverings of other materials