This service product is applicable to the exchange service of COMACpatent parts.Comac provides the exchange service to enable customers to quickly obtaintheavailable parts when the unavailable parts are removed from the aircraft, so as toensure the continuous operation of the aircraft.

The exchange service of Comac patented parts is that COMAC receives thecustomer's removal of the unavailable aviation materials through the contract or other requirements, and provides the customer with the required available aviationmaterials.