I've been trying to delete those.
Actually, I'm one of those who really dislikes Russian stuff. But anyhow, it is kind of interesting that J-10, WS-10, WZ-10 all have 10 as their designation. I guess it's a lucky designation. Mind you, SD-10 is an export missile, plaaf will never use it. As for WS-10, you can read up on some articles on it. But some of its root seems to come from past experiences with turbofan engines like WS-6. From most of the Chinese sources, WS-10's core seemed to have been developed by studying the core of CFM-56. In fact, a lot of WS-10's specs are aimed at replicating that of F110-GE-129. And the initial long duration tests for WS-10A's certification were definitely more stringent than that of AL-31.
To adeptitus,
I remember reading an article posted on afm that an empty Rafale is around 66 million and a fully loaded one is 140 million! The cost of this thing is really going up. As for M2K, considering that China thinks J-10 is a M2K with better maneuverability and thrust, I don't think they would be interested in it.