Unfortunately, priority registration service is in development.
为您提供在线服务 (Example of the original route-receipt):
(En) Before Departure

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(En) Baggage Allowance
(En) Free transport of luggage allowed in plane: not more than 20 kg per adult passengers.
(En) Read more -
(En) Meals on board
(En) The range of dishes.
(En) Read more -
(En) DutyFree goods on board
(En) 10% discount on all products.
(En) Read more