doing seo in different language is always difficult task
well if you want to do seo by your self it is for sure that you can not even touch the content
then open site in google translator and you will have an idea of which things to change etc.
rest of thing is link binding ( which anyway can be done )
but you should consider in mind that google is not top search engine in china. it is Baidu search engine that have more visitors.
so either you do or you outsource must consider Baidu search engine
thanks