What are the listed companies that produce helicopters?

Hafei shares (600038): the leader of helicopter listed companies. 1. The company has built a domestic first-class manufacturing system, formed a strong independent innovation capability, and become a research and development manufacturing base for helicopters, light multi-purpose aircraft and new regional aircraft in China. 2. The company is an important national aviation backbone enterprise, and it is a component supplier of internationally renowned aviation enterprises such as Boeing Company and Airbus Company. 3. The company is the largest production base of aviation composite materials in China, with a leading domestic and world-advanced composite material design, manufacturing, testing, experiment and technical system.