A good place to start your search is with the list of names of universities in China available from the
Ministry of Education.
These are not active links, or even URLs, just a list of names sorted by province, but you can use the names as a starting point for a web search.
A less complete list, but including links and descriptions, can be found on
Wikipedia's List of Chinese Universities.
Once you have the names of the universities in your preferred province/city then it is easy to come up with contact info from universities or agency websites. I recently found a job in my target area using a list I prepared this way and then sending them a standard email with attached scans of my degrees, reference letters, and etc.
I also suggest sending an MP3 of you reading a prepared text of a short blurb about why you would be a good person to hire. I did not include this with my earliest messages, and I noticed a significant increase in response after I put in the MP3.
Good luck to you.