11 Heating units, steam generating units, refrigerating units, drying units and ventilating units for industrial use; evaporators; humidifiers and heat exchangers; boilers for industrial use; [ machines employing specialized airflow methods used for drying, bonding, curing, and transfer of sheet materials, films and webs; machines used for drying sheet materials, films and webs; ] dryers and ventilators for industrial use; steam generators and steam condensers; air and water purifying units for industrial use; air handling equipment, hoods, filters, namely, air filters for industrial installations, industrial air filter machines, ventilation hoods; heat recovery systems comprised of heat exchangers, water heaters, heating coils, heat rotary dryers, steam tube dryers, vertical kiln dryers, heat screw dryers, burners, fans, transfer pumps, and circulation pumps, for reducing primary energy consumption in the recycling industry, the rock and mineral processing industry, the paper, board and pulp industries, and the energy industry; air and water treatment systems and waste water treatment units, namely, process water purification units, cartridge filtration units, membrane filtration units, chemical sterilization units; [ apparatus for the cleaning and purification of gases; cooking equipment, namely, chip feeder units, cooking vessels, wash diffusers, wash presses and storage tanks, all for industrial use to produce wood pulp for paper and board from cellulose containing materials; machines and apparatus for reduction of emissions, effluents and other discharge, as well as waste treatment equipment, namely, industrial air purification apparatus, dust removal systems comprising ionizers, dust collectors, cleaning heads, cleaning beams, air jets, and suction ducts, to remove dust from the surface of paper for use in paper machines; mist remediation and collection systems for use in moist and mist emission control at the wet end of paper and board machines comprised of air to air heat exchangers, air to water heat exchangers, droplet separators to separate liquid droplets from gas, and air mixing chambers; thermal oxidizers used to destroy odors from industrial operations, and odorous gas scrubbers, for odor gas treatment in the pulp and paper and power generation industry; ] structural and replacement parts for all the aforesaid goods, apparatus and systems [ industrial power boilers, fluidized bed boilers and incinerators; industrial recovery boilers and evaporators; industrial air purification apparatus, flue gas scrubbers, apparatus for odor gas treatment, namely, oxidizers used to destroy odors from industrial operations, odorous gas scrubbers, and structural and replacement parts for all aforesaid goods ]