6
metal containers and conduits for the storage or transportation of liquid and gaseous products; namely, tanks, pipes, tubes, silos and columns
7
machines and machine parts for environmental control plants and industrial production plants; namely, extractors, rotary-disc extractors, conveyors, screw conveyors, vacuum generating machines, mixers, compressors, separators, and plasmatrons; biomass manufacturing machines and machine parts; namely, fermentation machines, cyclones, ion exchangers, electrolysis cells, ozone generators, pumps, valves, and filters as parts of machines
9
measuring instruments for environmental control plants; namely, manometers, air, water or soil pollution detecting and analyzing instruments, electrical remote control units for environmental control plants and industrial production plants
11
soil and water purification units; petroleum refining units; heat exchangers, burners, combustion chambers, furnaces, refrigerators, coolers and dryers, sprinklers, vapour dryers, fluidized bed dryers, steam generators; solar engineering devices; namely, sole collectors; air purification units; namely, exhaust air purificators and desulphuricators, soil analyzers, plasmatrons, coal gasifiers and hydrogenators, alcohol distillators, air conditioners, ion exchangers, electolysis cells, ozone generators, evaporators and filters, and ultraviolet radiators, all for industrial use
12
vehicles; namely, trucks and railway cars having a refrigerated compartment
17
insulation for use in environmental control plants
42
engineering and design consulting services in the fields of environmental control plants and industrial production plants