Baotong is a professional supplier of aircraft hangar doors, and aircraft docking systems for aircraft manufacturing factories, aircraft maintenance companies and armies. In the past 22 years, Baotong has led Chinese hangar doors and aircraft docking systems to achieve international level of superior reliability. We are proud to acclaim that our hangar doors have gained great critical praise from Boeing, Airbus, COMAC, AVIC. Baotong has been a trusted supplier for China military aircrafts manufacturers, such as J-20, J-15, J31 and Y-20. Our doors and aircraft docking systems have been widely used in China civil airlines including Air China, Southern Airlines, Eastern Airlines, Hainan Airlines, Xiamen Airlines, Ameco, GAMECO, ST Aerospace.