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
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
Inside cleaning of all kind of buildings: offices, industries, institutional premises and other premises for professional or trade use, apartment buildings, etc
Cleaning of trains, buses, planes, ships, etc., including oil tankers
Cleaning and washing of motor vehicles
Cleaning of buildings
Other types of cleaning activities
Other types of cleaning of buildings; industrial cleaning