33 1 Factory, code of China Aviation Engine Group Southern Aviation Power Company, located in Zhuzhou City, Hunan Province. It is one of the key industrial construction projects of New China 156, one of the early six aviation enterprises in China, and the main research and production base of small and medium-sized aero-engines in China. The new China 1 batch piston aero-engine has been successfully developed.
Therefore, 33 1 Factory is a well-known central enterprise in Zhuzhou.