Hello
Can i also trade (buy/sell) bitcoins at some chinese exchange...? I mainly mean...:

1) Is it posible regarding the law, or can only chinese residence trade on chinesse exchanges?
2) Do they (the exchanges) want some proof of ID of mine before they will allow me to trade (or deposit cash or bitcoin)?
3) Is there any chinesse exchange (any bigger one?) that has also english as their native language (or does google translator do a good job in translating these?)
4) Can i get my money out of the chinesse exchnage somehow in cash?

If yes, what exchnage site does concretely fit all the points of my description?