Is aviation Qingyun a big factory or a small factory?

Big factory. According to official website's inquiry, the full name of "Aviation Industry Qingyun" is Aviation Industry Beijing Qingyun Aviation Instrument Co., Ltd., which was founded in 1958, and is one of the first batch of specialized scientific research and production enterprises of aviation airborne equipment established in New China. The company has 0/400 employees, mainly engaged in the research and development and production of aviation products such as automatic flight control system (including automatic throttle control system), accelerometer, radio altimeter, integrated display equipment and aviation watt-hour meter. Therefore, Aviation Qingyun is a big factory.