Installation of secondary power supply systems (electrical generators)
Building of transport and distribution lines for electricity
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.
Ground-water lowering and dredging of construction sites
Removal on construction sites
Setting of electric cables and appliances
Setting of monitoring systems and alarms against housebreakings
Installation in buildings or in other projects of building of: pumbling systems and hygiene appliances, pipes for gas and water (except for heating), setting of automatic extinguishers, etc.
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.
Setting of electrical installations of heating
Application in buildings and in other projects of building of gypsum or stucco, inside and outside, including the associated lathing materials
Assembling of frames
Works of recovering in all materials
Setting of rainwater disposal elements
Masonry
Setting of screeds
Setting of foundations, including pile hammering
Installation of industrial machines, devices and equipment
Construction of other types of non-residential buildings
Electro-technical installation works at buildings
Electro-technical installation works, with the exception of those executed at buildings