Terracing work: digging, grading of construction sites, opening of trenches, removal of rocks, destruction with explosives, etc.
Preparation of sites for mining: overburden removal and other work of planning and preparation for mining sites
Ground-water lowering and dredging of construction sites
Setting of electric cables and appliances
Installation in buildings or in other projects of building of: heating systems by electricity, gas and fuel, boilers, materials and pipes for ventilation and air conditioning, etc.
Installation in buildings or in other projects of building of: heating, cooling and ventilation systems (except heating)
Setting of electrical installations of heating
Installation of blinds and florentine blinds
Other works of finishing in buildings n.e.s.
Setting of foundations, including pile hammering
Assembling of elements of metallic structures, not made by the unit making the works
Trade intermediaries for electric and electronic equipments, including installation equipments for industrial use
Other n.e.s. intermediaries specialized in trade
Retail trade of household appliances
Design of gardens, parks, etc.
Cutting of trees and hedges
Design and maintenance of gardens, parks and green places for sport facilities
Construction of residential buildings
Electro-technical installation works at buildings
Installation of heating, air-conditioning and ventilation
Other types of building installations
Laying of floor and wall tiles
Laying of floors and fitting wooden wall-coverings
Other types of works with regard to the completion of buildings
Intermediation of machines, devices, tools used in the industry as well as in ships and aircraft
Intermediation of common goods
Wholesale in electronic materials, inclusive of material for installation
Wholesale in installation materials used by plumbers and for the installation of heating
Retail trade in sanitary products and sanitary installation materials in specialised shops
Other types of business services
Maintenance of the landscape
Other types of specialised building activities
Electro-technical installation works, with the exception of those executed at buildings