06
Metal tubes and pipes
07
Cooling radiators for motors and engines; heat exchangers
(parts of machines); hydraulic controls for machines,
motors and engines; steam engine boilers; heat exchangers
(recovery boilers); filters (parts of machines); machine
tools; motors and engines (other than for land vehicles);
machine couplings and transmission components (other than
for land vehicles); incubators for eggs
11
Heat exchangers; refrigerating and cooling apparatus and
installations; liquid coolers (installations);
refrigerating cabinets; cooling vats; freezers;
refrigerating apparatus, machines and chambers; heat
recovery installations for gases and fumes; apparatus for
lighting, heating, steam generating, cooking, refrigerating,
drying, ventilating, water supply and sanitary purposes;
heating boilers; incinerators; filters (parts of household
or industrial installations); air filters for air
conditioning; energy savers; heat regenerators; recovery
boilers; boiler pipes [tubes] for heating installations;
air-conditioning installations; air heaters, industrial
boilers
19
Non-metallic rigid pipes for building
37
Installation, construction, repair and cleaning services for
heating and cooling apparatus; installation and repair
information for said apparatus; installation and repair
services in connection with heat exchangers, energy savers,
boilers, incinerators, filters, energy recovering systems
and air conditioning
42
Evaluation, estimates, research and reports in the fields of
science and technology, surveying (engineering works);
industrial analysis and research services, thermal and
chemical analysis services, heat calculation services,
mechanical research services and technical research
services; quality control services; testing of materials;
engineering; technological and technical research and study
services provided by engineers; research and development of
new products for others, thermal analysis and technical
project studies relating to heat exchangers, energy savers,
recovery boilers, incinerators, filters and industrial
installations for recovering heat from gases and fumes
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