Terracing work: digging, grading of construction sites, opening of trenches, removal of rocks, destruction with explosives, etc.
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.
Work of insulation of pipes for heating or cooling
Cleaning with steam, sandblasting and similar activities used on the outside of buildings
Making of repointing works
Installation of private swimming pools
Trade intermediaries for supplies for plumbering, equipments of electric system for houses and heating systems
Wholesale trade of appliances for heating
Wholesale trade of equipments for sanitory systems and central heating: pipes, pipe fittings, tabs, rubber pipes, etc.
Design and maintenance of gardens, parks and green places for sport facilities
Installation of heating, air-conditioning and ventilation
Insulation works
Wholesale in electronic materials, inclusive of material for installation
Wholesale in sanitary
Wholesale in installation materials used by plumbers and for the installation of heating
Do-it-yourself businesses and d.i.y. shops of common building materials
Retail trade in sanitary products and sanitary installation materials in specialised shops
Retail trade in other types of building materials in specialised shops
Retail trade in lighting products in specialised shops