Xi 'an has a flying west, in yanliang district, Xi 'an; There is an aircraft factory in Hanzhong called Shaanxi Aircraft Industry (Group) Co., Ltd. (hereinafter referred to as Shaanxi Aircraft Group), which is located in Hanzhong City, Shaanxi Province and belongs to China Aviation Industry Corporation II. Is 1969 approved by the central government, the only large state-owned military enterprise in China that develops and produces large and medium-sized military and civilian transport aircraft.