Shadin Avionics, 6831 Oxford St, Minneapolis, MN 55426, US

Twin City Fan & Blower, founded in 1970s, is one of the leading designers and manufacturers of commercial and industrial fans. Its product line includes centrifugal fans and blowers, axial fans, and power roof ventilators, with units ranging in size from one-fourth horsepower exhaust fans to 1750 horsepower heavy industrial units. The company supplies ventilation fans for retail and office buildings, restaurants, schools, hospitals, and government buildings. Its industrial fan applications include air and material handling, air cleaning, ventilation, cooling, heating, combustion air supply, filtration and drying systems, fume hoods, spray-paint booths, and exhaust systems. The company also offers special materials, construction, coatings, and accessories to suit any application requirements. Twin City Fan & Blower is a division of Twin City Fan Companies. The company is headquartered in Minneapolis, and has its manufacturing facilities in South Dakota.