Can anyone tell me about the luggage storage service in Chengdu airport ?

There are three types of lockers in the airport, small, middle and large.
For the small one, it charges 8RMB for 6 hours, 13RMB for 12 hours, 18RMB for 24 hours. If over 24 hours, it charges extra 2RMB every 6 hours.
For the middle size, it charges 12RMB for 6 hours, 20RMB for 12 hours and 28 for 24 hours. If over, it charges extra 4RMB every 6 hours.
For large one, it charges 20RMB for 6 hours, 30RMB for 12 hours and 40RMB for 24 hours. If over, it charges extra 5RMB every 6 hours.

It is very safe to keep it in the airport.