The China regions might not have all the AWS services present, and they have some extra restrictions, but they aren’t some kind of clones of AWS software.
Unless I’m missing something, they are the same versions of what runs in the other regions.
AWS-China is literally a different organization with a different service on a different URI and with whom you'll need to establish a different contractual relationship.
No experience with AWS China, but I taught a class to some folks who used one of the restricted AWS regions and the services and features were limited when compared to normal aws regions, according to the students.