Building of highways, roads, streets, pavements and other roads for vehicles and pedestrians (including the setting of guard rails)
Building of tunnels for roads and railways and other underpasses
Building of conveyance, distribution and water disposal networks
Building of sport fields, game fields, swimming pools, etc.
Dredging of agricultural and silvicultural lands
Assembling of inside and outside metallic woordworks: doors, windows, frames for windows and doors, stairs, closets for equipped kitchens, shop equipments, etc.
Setting in buildings or other projects of building of: wall recoverings or tiles in ceramic, in concrete or in freestones; floorings and wall recovering in granites, etc.
Other works of finishing in buildings n.e.s.
Cleaning with steam, sandblasting and similar activities used on the outside of buildings
Masonry
Making of repointing works
Setting of screeds
Setting of foundations, including pile hammering
Assembling and disassembling of scaffoldings and work platforms
Design and maintenance of gardens, parks and green places for sport facilities
Hewing, moulding and finishing of natural stone
Forging of metal
Construction of residential buildings
Construction of other types of non-residential buildings
Construction of high roads and other types of roads
Construction of bridges and tunnels
Demolishing
Preparing land for construction
Drilling and pre-drilling
Insulation works
Plastering work
Carpentry
Laying of floors and fitting wooden wall-coverings