Heroux-Devtek Inc. (Heroux-Devtek) is a Canada-based company which manufactures aerospace products. The Company designs, develops, manufactures, repairs and overhauls landing gear systems and components used in the aerospace market. It supplies the commercial and military sectors of the aerospace market with landing gear systems and components, as well as aftermarket products and services, including spare parts and repair and overhaul services. It operates facilities in the Greater Montreal area (Longueuil, Laval and St-Hubert); Kitchener and Toronto, Ontario; Springfield and Cleveland, Ohio; Wichita, Kansas, and Bolton, Runcorn and Nottingham in the United Kingdom. Its facilities fabricates landing gear systems and components, excluding the Toronto facility (Magtron), which manufactures electronic enclosures, heat exchangers and cabinets for airborne radar, electro-optic systems and aircraft controls, and the Bolton facility, which manufactures fluid filters for aircraft engines.