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; heat exchangers that recover
gases and fumes from industrial plants
11
Heat exchangers; refrigerating and cooling apparatus and
installations; liquid coolers (installations); refrigerating
cabinets; cooling vats; freezers; refrigerating apparatus,
machines and chambers; incinerators; 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 heater
19
Non-metallic rigid pipes for building
37
Installation, construction, repair and cleaning services for
heating and cooling apparatus; installation and repair
information regarding 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, namely expert reports (engineering
services); industrial analysis and research services, namely
thermal and chemical analyses, heat calculations, mechanical
research 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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