There are other information about applying for flight attendants, which I found online, hoping to help you.
To become a real flight attendant, internship is the only way. In China, students recruited by airlines for flight attendant schools usually have to practice in airlines for about three months. If they are recruited by the society, they should be trained for at least half a year.
China Eastern
Monthly salary (calculated by monthly flight 100 hour)
Flight attendant (security officer): 5400 yuan-14750 yuan.
Attendant: 16780 yuan
Cabin manager: more than 20,400 yuan