That would depend on how "curvy".

I once showed a photo of Jeniffer Lopez and my students found her "fat"...

My students love Beyonce "sexy sexy sexy"

And well you know she is the Queen of curves.

usually chinese man prefer slim girls, but nonetheless many appreciate curvy ones too, like "African Girls" haha

thy prefer slim and young grlz

I'm told by Chinese woman that I'm a nice "fat". I don't think Chinese guys just get nicely proportioned females...I've found that they do like to point at breast. Just saying

lol, it is a good questions, as they say, it is a personal question, not a accurate answer, we like those we enjoy, that's it.

 Yes, Chinese men like slim girls,but  not skinny ones, slim and with curve.  A lot of boys in my school said they don't like skinny ones...   They also think  beyonce is very hot . And most people( not just girls ) in china are slim. That is why most chinese men don't like FAT women. 

I was once called fat by one of my students I am 5 foot 3, 52 kilograms

Gah!

It's personal. And it's hard to explain since we cannot make a conclusion before we know the whole thing. It's the match stuff and it's person-oriented.

I think is up to how old is the guy and how many gfs or how much he really knows about girls.

I've met many guys who still at 22 yo claim to be so shy to have a gf, I kept the talk and they seem to idealize girls, even when they dont like a girl they become so shy! Imagine when they like the girl.

Im not saying all guys in China are like that but the more experiences they have the better they can give an opinion.

There's an example I dont want to take in other way, just to justify my previous arguments: Just like cars, to someone who doesnt know about cars they may think there are only black, blue, white and all kind of colors, and about size they may say big and small.

When u know a little bit more then u know the same car may have some details that make it be different among the same cars of its kind, bumpers, side mirrors, rims, etc, etc.

Finally I think even when we all give opinions here that's what we think it is, the best is finding out how many of the people answering here is chinese.

Curvy or not I'm crazy about women!!! haha

In my experience, most girls over 50kg will be considered at best "too heavy" and at worst "too fat".  It's sort of a universal goal for most Chinese girls that they want to be less than 50kg....at least around these parts   Which is ridiculous really...nothing wrong with a little meat on the bones 

everyone has his taste, it is totally personal things; for me, i like "a little fat" girl,it feel very good when we together,

is rapidly changing the question