Drilling, turning, countersinking, shaving, planing, lapping, broach, dressing, sawing, grinding, sharpening, etc. of metallic pieces
Building of highways, roads, streets, pavements and other roads for vehicles and pedestrians (including the setting of guard rails)
Scraping of rivers, pits, etc.
Destruction of buildings and other kind of buildings
Terracing work: digging, grading of construction sites, opening of trenches, removal of rocks, destruction with explosives, etc.
Setting of electric cables and appliances
Setting of telecommunication systems and computer installations
Setting of monitoring systems and alarms against housebreakings
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
Implementation in buildings or in other projects of building of: thermal insulation materials, acoustic and antivibrating insulation materials
Work of insulation of pipes for heating or cooling
Work of insulation of coolers or refrigerated warehouses
Assembling of partitions in gypsum
Setting in buildings or other projects of building of: wooden floors, partition recovering in wood
Cleaning with steam, sandblasting and similar activities used on the outside of buildings
Masonry
Making of repointing works
Setting of screeds
Assembling of elements of metallic structures, not made by the unit making the works
Transport of goods by roads: transport of saw timbers, livestock, cars, wastes, refrigerated transport, international transport, transport in bulks, including by tank trucks
Cutting of trees and hedges
Design and maintenance of gardens, parks and green places for sport facilities
Sewage disposal
Demolishing
Preparing land for construction
Electro-technical installation works at buildings
Installation of heating, air-conditioning and ventilation
Insulation works
Laying of floors and fitting wooden wall-coverings
Carrying out masonry and pointing
Works with cement concrete
Freight traffic by road, with the exception of removal firms