7
appliances for high pressure cleaning; aerators; expansion tanks; water heaters; feed water de-aerators; shredders for industrial use; air evaporators; collectors for the protection of steam engine boilers from scaling; compressors; air compressors; compressors for refrigerators; conveyors; conveyor belts; condensers; steam engine boilers; air condensers, paint spray gun; paper-making machines; air blowers; oil cleaning machines; shredders; machines for paper production; washing machines; electric machines and appliances for cleaning; electric machines and appliances for cleaning carpets; polishing machines and appliances; dryers; textile machines; mixers, filtering machines; electromechanical machines for the chemical industry; mills; centrifugal mills; mixers; electric household emulsifying mixers; attachments for vacuum cleaners for spraying aromatics or disinfectors; pumps; pumps, vacuum pumps; air pumps; pumps of heating systems; oil pumps; steam separators; centrifugal pumps; superheaters; electric glue guns; presses; sewage sprayers; paint sprayers; separators; steam and oil separators; central vacuum cleaning systems; washing equipment for means of transport; heat exchangers; equipment for degreasing; equipment for dust removal; condensation equipment; dividers; washing devices; centrifuges; electric devices and appliances for wax polishing; filter presses; filters [machine or engine components]
11
appliances and machines for water purification; distillation appliances; air deodoration appliances; air or water ionisation devices; water heaters; water heaters; distillation towers; evaporators; distillation columns; gas boilers; heating boilers; heat pumps; agricultural irrigation systems; steam generators, except for mechanical components; gas cleaning devices; oil cleaning devices, water filtering devices; air cleaning and machines; desordoration devices, excepting those designed for personal use; pressurized water storage tanks; sea water desalination; water cooling installations; water softening installations and devices; water purification systems; waste water treatment systems; polymerization systems; water supply systems; steam production systems; air filtering systems; vortex water generators; filter systems for fish tanks; filters, including those for air conditioners, drinking water filters
42
water analysis; chemical analysis, engineering; examination of technical projects; bacteriological research; biological research; environmental research; chemical research; technological research; scientific laboratory services; chemical services; engineering/technological expertise