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Ventilation, heating, air conditioning machinery

    Name
      Primary Industry
City
    Benjamin Aviation & Machines Fort Benton
Heating Equipment (except Warm Air Furnaces) Manufacturing - Heating Equipment, Except Electric and Warm Air Furnaces
    D & S Heating and Sheet Metal Roundup
Air-Conditioning and Warm Air Heating Equipment and Commercial and Industrial Refrigeration Equipment Manufacturing (except motor vehicle air-conditioning)
    Green Machine Heat Systems Missoula
Heating Equipment (except Warm Air Furnaces) Manufacturing - Heating Equipment, Except Electric and Warm Air Furnaces
    HCR Inc Lewistown
Industrial and Commercial Fan and Blower Manufacturing
    Valley Sheet Metal Inc Hamilton
Ventilation, Heating, Air-Conditioning, and Commercial Refrigeration Equipment Manufacturing