I am in agreeance with everyones points here,
Wuhan China's are amazing, however unfortunately the only problem that I found with them was that they cracked fairly easily, if your using them in particular for metal (breakdowns and such). Also, in Australia it's fairly difficult to get your hands on them. BandanaDrummer made a good point to, The
Sabian AAX-Treme 18" China's are incredible, they have the most freakin' amazing trashy sound that you want in a metal china.
Also, I'd like to add, a cool way of making trashy (not China cymbals, per se) cymbals that CAN be used as China's is using a pair of thin hi hats, like those cheap nasty cymbals that come with kits. i've done that with my kit at the moment, one of them is cracked and got missing chunks, the other has one chunk missing, but is screwed ontop of my Ride and it gives a relatively unique trashy sound, sounds sick. another way of making a cool sounding China imitation is like, drilling holes into it. Like the
Sabian O-Zone
I'll stop ranting now. (: