Assembling of elements of metallic structures, not made by the unit making the works
Making of lifting works for third parties
Assembling and disassembling of scaffoldings and work platforms
Inside cleaning of all kind of buildings: offices, industries, institutional premises and other premises for professional or trade use, apartment buildings, etc
Window cleaning
Chimney sweeping and cleaning of hearths, ovens, incinerators, boilers, air ducts and smoke removal appliances
Construction of high roads and other types of roads
Construction of railways over and beneath ground level
Construction of bridges and tunnels
Construction of distribution facilities for water and gas
Construction of sewerage systems
Preparing land for construction
Drilling and pre-drilling
Insulation works
Other types of works with regard to the completion of buildings
Cleaning of buildings
Other types of cleaning of buildings; industrial cleaning