06
Chimney shafts of metal; metal fume ducts for chimneys;
ducts of metal for ventilating and air conditioning
facilities; pipes of metal for central heating
installations; metal fume ducts for chimneys; chimney cowls
and pots of metal; metal hose clamps for chimneys and
ventilation and air conditioning ducts; metal
reinforcements for chimneys and ventilation and air
conditioning ducts; metal ventilation grids; metal
connector elements for pipes; metal chimney covers and
ventilation and air conditioning ducts; pipes of metal for
removing smoke from industrial apparatus
11
Apparatus and installations for heating, air-conditioning,
ventilation and steam production installations, namely
heating installations; boiler pipes in the nature heating
installations tubes; extractors for ventilation apparatus;
ventilation grates and inlets; draft regulators [heating];
chimney flues; flues for heating boilers
17
Flexible pipes, not of metal; chimney flues not of metal;
non metallic pipe fittings for chimneys and ventilation and
air conditioning installations; insulating materials and
insulating jackets for non metallic chimneys and ventilation
and air conditioning ducts; heat-insulating materials and
items; gaskets; waterproof packings; non metallic pipe
sleeves for chimneys and ventilation and air conditioning
installations
19
Non metallic chimney shafts; non metallic chimney flues;
ducts not of metal for ventilating and air-conditioning
installations; non metallic ducts for central heating
installations; non metallic chimney flues; chimney cowls
and pots not of metal; clip clamps not of metal for chimney
ducts and ducts for ventilation and air conditioning;
reinforcements for non metallic chimneys and ducts for
ventilation and air conditioning; non metallic ventilation
grids; non-metallic pipes for industrial smoke removal
apparatus
42
Services of an analysis, control, testing and research
laboratory in the field of tubing, heating engineering,
ventilation and air-conditioning; conducting of technical
project studies in the field of tubing, heating engineering,
ventilation and air-conditioning; scientific and industrial
research and development carried out by engineers in the
field of tubing, premium, ventilation and air conditioning;
technical design and development of heating apparatus and
installations, products for tubing, heating engineering,
ventilation and air-conditioning; quality control of heating
apparatus and installations, products for tubing, heating
engineering, ventilation and air-conditioning; technical
advice and information on heating apparatus, equipment and
installations, products for tubing, heating engineering,
ventilation and air-conditioning; technical appraisals
relating to the transfer of technology; services of
engineers responsible for assessments, estimates, research
and reports in scientific and technological fields relating
to tubing, heating engineering, ventilation and
air-conditioning
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