Having lived in Taiwan for about 10 years and having
tried to do business in mainland China I can tell you that Chinese corruption is not just a fact but a vast and sweeping issue. An issue that made its way into Chinese society and culture long ago unfortunately make it engrained. The Chinese
can make anything you want and to any standard you want. The problem is there are just too many "supported" and totally corrupt people that think nothing of ripping you off knowing full well you have zero recours in the matter.
I can bore people to dust with hundreds of stories ranging from just getting bumped for a couple of hundred dollars worth of materials to having whole companies stripped from non Chinese owners, all because of blatant corruption and the culture of "what's mine is mine and what's your is mine....and I'm much better than you, too". I personally choose to have as little as possible to do with a place like that.