I don't think you can just copy SpaceX's falcon 9 reusibility and landing just by wanting to do it. Even once you've got the basic system it takes years and years of iteration to make it better step by step. Only one company in the west has really done any of that, and if spacex wasn't around no one would believe it could be done.
I'm sure it can be done eventually by China though, they are just as smart as anyone else. Can they organize their scientific and engineering forces as well? Knowing it can be done is a huge help.