First of all, university reputation is extremely important in China and is directly related to salary expectations. Graduates from the top universities can command much higher salaries in comparison to the rest of the graduate market.
Secondly, you may need to use a couple of methods, such as written tests, group discussion or one-to-one interviews, to assess the quality of the graduates. It works best if you give prospective candidates more information upfront on how to approach the selection process and tell them what you are looking for with regard to the on-line application, the telephone interview and the competencies you seek.
You should be very clear about the compensation package on offer since outstanding students generally receive a couple of offers when they graduate. Without competitive offer, all your effort shall become sunk cost.