Building of transport and distribution lines for electricity
Building of lines and networks of telecommunication
Terracing work: digging, grading of construction sites, opening of trenches, removal of rocks, destruction with explosives, etc.
Making of horizontal drillings for cables or pipes
Setting of electric cables and appliances
Setting of telecommunication systems and computer installations
Setting of monitoring systems and alarms against housebreakings
Transport of goods by roads: transport of saw timbers, livestock, cars, wastes, refrigerated transport, international transport, transport in bulks, including by tank trucks
Collection, shipment and distribution of letters, parcels and packets by companies other than the national post company. one or several means of transport can be used
Freight traffic by road, with the exception of removal firms
Other types of postal services and express couriers
Rental and lease of machines and installations used in the building industry, road works and water works
Building of highways, roads, streets, pavements and other roads for vehicles and pedestrians (including the setting of guard rails)
Building of conveyance, distribution and water disposal networks
Building of gas, fuel transport networks, etc.
Installation of secondary power supply systems (electrical generators)
Other types of business services
Distribution of gas-like fuels by means of pipes
Construction of high roads and other types of roads
Construction of distribution facilities for water and gas
Construction of sewerage systems
Construction of civil-technical works for liquids
Construction of civil-technical works for electricity and telecommunications