Manufacture of metallic woodwork: doors and windows with casings, shutters, movable partition, railings, garage doors, etc.
Thermic treatment of metals
Deburring, sandblasting, tumbling, metal cleaning
Coloration, enfraving and printing of metals
Unmetallic covering of metals: lamination, enamelling, lacquering, etc.
Hardening and buffing of metals
Terracing work: digging, grading of construction sites, opening of trenches, removal of rocks, destruction with explosives, etc.
Preparation of sites for mining: overburden removal and other work of planning and preparation for mining sites
Ground-water lowering and dredging of construction sites
Dredging of agricultural and silvicultural lands
Making of horizontal drillings for cables or pipes
Other works of finishing in buildings n.e.s.
Masonry
Making of repointing works
Setting of foundations, including pile hammering
Works of reinforcement and setting of casings
Inside cleaning of all kind of buildings: offices, industries, institutional premises and other premises for professional or trade use, apartment buildings, etc
Preparing land for construction
Electro-technical installation works, with the exception of those executed at buildings
Freight traffic by road, with the exception of removal firms
Other types of cleaning of buildings; industrial cleaning
Other types of works with regard to the completion of buildings