Manufacture of welded tubes by forming and welding, hot or cold, by forming and cold drawing or by forming and hot reducing
Drilling, turning, countersinking, shaving, planing, lapping, broach, dressing, sawing, grinding, sharpening, etc. of metallic pieces
Realization of individual houses' carcass
Making of the carcass of building with several rooms (apartments, etc.)
Making of carcass of buildings
Building of transport and distribution lines for electricity
Terracing work: digging, grading of construction sites, opening of trenches, removal of rocks, destruction with explosives, etc.
Removal on construction sites
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.
Assembling of inside and outside metallic woordworks: doors, windows, frames for windows and doors, stairs, closets for equipped kitchens, shop equipments, etc.
Assembling of garage doors, blinds, louvers, grids, etc. in metal
Assembling of metallic greenhouses, verandas, etc.
Cleaning of new buildings and restoring after works
Other works of finishing in buildings n.e.s.
Cleaning with steam, sandblasting and similar activities used on the outside of buildings
Building of decorative chimneys and fires
Making of repointing works
Works of reinforcement and setting of casings
Building of industrial ovens and chimneys
Assembling of elements of metallic structures, not made by the unit making the works
Assembling and disassembling of scaffoldings and work platforms
Design of gardens, parks, etc.
Chimney sweeping and cleaning of hearths, ovens, incinerators, boilers, air ducts and smoke removal appliances
Cutting of trees and hedges
Design and maintenance of gardens, parks and green places for sport facilities
Production of aluminium
Production of lead, zinc and tin
Production of copper
Construction of residential buildings
Construction of office buildings
Construction of other types of non-residential buildings
Construction of distribution facilities for water and gas
Construction of sewerage systems
Construction of civil-technical works for liquids
Construction of civil-technical works for electricity and telecommunications
Demolishing
Preparing land for construction
Electro-technical installation works at buildings
Electro-technical installation works, with the exception of those executed at buildings
Plumbing works
Installation of heating, air-conditioning and ventilation