40
Treatment of materials
manufacturing of radiant heaters, namely, infrared heaters, tube heaters, unitary tube heaters and stick heaters, hvac units and equipment, namely, cooling equipment, heating equipment, dehumidification equipment, split systems, condensing units, dedicated outdoor air units, dedicated outdoor air systems, direct-fired air handlers, direct-fired make-up air handlers, make up air heaters, air handling units, indirect-fired air handlers, indirect-fired make-up air handlers, direct-fired equipment, indirect-fired equipment, hygienic air handlers, penthouse refrigeration units, air turnover units, indirectfired air turnover units, heat pumps, packaged rooftop systems, packaged rooftop units, rooftop air handlers, critical process air handlers, air diffusers, and air management systems, infrared heaters, namely, tube heaters, unitary tube heaters, radiant heaters, stick heaters, and air finishing systems, namely, industrial process and finishing equipment, direct-fired air handlers, direct-fired make-up air handlers, make up air heaters, air handling units, indirect-fired air handlers, indirect-fired, indirect-fired, make-up air handlers, direct-fired equipment, indirect-fired equipment, air turnover units, indirect-fired air turnover units, finishing systems, batch ovens, rooftop air handlers, hvac controls, dry-off ovens, cure ovens, air management systems, pre-treatment stations, custom washers, custom ovens, custom finishing equipment