Do-it-yourself businesses and d.i.y. shops of common building materials
Building of tunnels for roads and railways and other underpasses
Terracing work: digging, grading of construction sites, opening of trenches, removal of rocks, destruction with explosives, etc.
Implementation in buildings or in other projects of building of: thermal insulation materials, acoustic and antivibrating insulation materials
Setting in buildings or other projects of building of: wall recoverings or tiles in ceramic, in concrete or in freestones; floorings and wall recovering in granites, etc.
Works of recovering in all materials
Assembling and disassembling of scaffoldings and work platforms