How long does it typically take for Chinese universities to accept or reject applicants?
It depends on the programme of studies, the director that will see your application, plus whether there are additional requirements for your discipline, for example a portfolio. You might get lucky if you can email admissions again to ask which state your application is in, and how many stages you have before they conclude the process. Normally in a Chinese uni though they will ignore you until it is time to inform you.