07
Industrial machinery and machine tools; motors, other than
for land vehicles; fans for motors and engines, motors and
engines for fans and for air conditioning apparatus and
installations; heat exchangers (parts of machines); filters
(parts of machines or engines)
11
Apparatus for lighting, heating, steam generating, cooking,
refrigerating, drying, ventilating, water supply and
sanitary purposes; desalination plants; cooling appliances
and installations; water cooling towers; distillation
apparatus; heat exchangers (except parts of machines); air
conditioning apparatus and installations; air cooling
apparatus and installations; fans (air conditioning), fans
(parts of air conditioning installations); electrostatic
precipitators; apparatus and installations for flue gas
desulfurization; air purification apparatus and
installations; air filtering installations; filters for air
conditioning apparatus and installations; filters for air
cooling apparatus and installations; apparatus for gas
purification (gas scrubbers); filters (parts of industrial
installations)
37
Repair and maintenance of constructions; services for
assembling, cleaning, maintenance and repair of heating
installations, ventilation installations, air conditioning
installations, refrigeration installations, heat exchangers,
as well as cooling installations and cooling towers; repair
or maintenance of machines; rental of construction machines
and tools; turnkey construction of cooling installations and
cooling towers
42
Construction drafting and advice in the field of
construction; construction drafting and advice in the field
of assembling heat exchangers, cooling installations and
cooling towers; services of architects, chemists,
physicists, engineers and land surveyors; computer
programming services; surveys drawn up by engineers or
laboratories; technical consulting services in the field of
civil engineering; materials testing; heat performance
testing; inspection services (quality control) of heating,
ventilating, refrigerating installations, heat exchangers as
well as cooling installations and cooling towers; technical
project studies and management of technical projects for
designing and improving quality of cooling towers and
cooling installations, air monitoring systems and heat
exchangers; feasibility studies in the field of
construction, assembly and improvement of cooling towers,
cooling installations and air monitoring systems;
engineering services; research and analysis pertaining to
the monitoring of air contamination and cooling processes
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