Funny... If that was true, then it would mean that the rest of the world's players like to get beaten... I mean, how the hell would the chinese have better methods of rubber production and enhancing than such big corps like Butterfly, Stiga, Tibhar...? It makes no sense to me, at least. Of course such a long domination would bring suspicion, but I like to believe they have their merits. I mean, just look at Fang Bo's forehand technique.
The domination depends on their incredible training, I think.. For example on the Tibhar site you can check the profiles of some players and how many hours some of them practice. The chinese even multiply on that ;) And in the end everything is practice (look at those talent shows for instance)..