Installation of secondary power supply systems (electrical generators)
Terracing work: digging, grading of construction sites, opening of trenches, removal of rocks, destruction with explosives, etc.
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
Assembling and disassembling of scaffoldings and work platforms
Design of gardens, parks, etc.
Creation and setting of advertisements: posters, advertising signs, lighting newspapers, lighting signs, display on buses, etc.
Hire of machine tools and do-it-yourself materials
Hire of scaffoldings and platforms, without mounting and removal
Cutting of trees and hedges
Design and maintenance of gardens, parks and green places for sport facilities
Repair of household appliances
Production of lighting devices
Repair of metal products
Repair of electronic and optical equipment
Repair of electronic devices
Installation of industrial machines, devices and equipment
Electro-technical installation works at buildings
Insulation works
Restoration of buildings
Other types of specialised building activities
Retail trade in electronic domestic devices in specialised shops
Maintenance of the landscape
Repair of domestic devices and of equipment used in house and in the garden
Repair of other types of consumer goods
Other types of building installations
Electro-technical installation works, with the exception of those executed at buildings
Installation of heating, air-conditioning and ventilation
Preparing land for construction
Production of switching appliances and of manifolds