Be very careful--if you are crew, you must travel on a crew visa; if pax on business, a business visa. If crew entering as crew, but airlining out--you must have a letter in Mandarin and English explaining why you entered as crew but are traveling out on an airliner.
I have seen this done wrong and it will be painful. Jepp or UV handlers should be able to work the details. I've done it right and it's simple. We had a crew change during the trip, the details were missed, the crew member stayed in a rather tatty hotel on the airport for the night, missing their flight.
GF