actually you had ego problem. .. Russians were not inferior. .. it just they don't have enough money for R n D... as well if they are inferior. .. why would china copy Russia's weapons... still china dependent on Russia's engine... you just don't want to accept the fact....
Dude, the production J-10B is now using WS-10A.
J-11B/J-16 also use WS-10A.
China will wean itself off Chinese engines over the next few years.