06
Metal chimney pipes; 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;
air vents; draft regulators [heating]; chimney flues; flues
for heating boilers; chimney flues not of metal
17
Flexible pipes, 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; thermal
insulation materials and articles; 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
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