work visa application for a zimbambwean

China work visa requirements for your reference: passport, visa application form, one recent passport photo, Invitation Letter of Duly Authorized Unit" or "Confirmation Letter of Invitation" , work permit and other deemed necessary documents by the embassy. Please note that even if you submit all the requirements, you may not get the visa. It is decided by the visa officers if you are qualified to get the visa, not by the requirements are enough or not.
FYI: https://www.travelchinaguide.com/embassy/visa/work.htm