06
Industrial metallic pipes for the transit of all liquid or
gaseous media (overhead and underground installations);
metallic ducts for installations for ventilating, filtering
and purifying air (dust removal), heating, cooling of all
fluids, air conditioning
11
Thermal Installations, heat exchangers; installations for
ventilating, filtering and purifying air, heating and
cooling of all fluids and air conditioning
17
Bituminous membranes for sealing, sealing and insulating
materials, sealing trimmings, materials for caulking and
stopping, insulating felts
19
Non-metallic construction materials, in particular for
construction works, repair, maintenance, restoration and
renovation of pipeline systems for the transit of all liquid
or gaseous media, electric lines and all equipment for
roadways, various networks, works of art and civil
engineering; cement, bitumen, bitumen emulsions, concrete,
mortar, non-metallic rigid pipes, non-metallic ducts and
piping for the transit of all liquid or gaseous media
(overhead and underground installations)
37
Construction, installation, repair, maintenance,
restoration, renovation services for pipinng networks for
the transit (transport and distribution) of all liquid or
gaseous media (gas, drinking water, wastewater, rainwater)
for electric lines, works of art; related works (drilling,
sinking, workstation construction); construction and
installation of overhead and underground electricity
transport and distribution networks and public and urban
road street lighting networks; construction and
installation of distribution networks for heating and
cooling of all fluids, thermal and air-conditioning
installations; highway works and miscellaneous networks
(urban developments, namely construction works of urban
networks, roads, small masonry works), civil engineering,
landscaping and all public works; sanitary plumbing works;
maintenance of industrial facilities, factory relocation
(construction, resettlement works)
40
Processing of materials namely processing of metals,
welding, fabrication of all metals