Z Visa process for company in China

I've been asked by the company I'm about to work for to post some documents (including a non-criminal record, CV, degree certificate and proof of past work experience) to them in China. They have told that the next step is where they send me the required documents for me to apply at the visa application centre in my home country. However, having worked for a school in China on a Z type before, I remember that then I didn't have to post them any documents, as mentioned above.

Is this the correct and quickest possible process?