what type of Permit and How long take time for process, wife joint move to China

Dear, you should apply for S1 type and your husband can ask the company to issue an invitation letter to you. Besides, you need to provide the following documents including your passport and its photocopy, the application form and a recent passport-styled color photo, your residence permit in New Zealand, an invitation letter from your husband, passport of your husband (copy), as well as your marriage certificate (original and copy). It usually takes 4 working days to process the application.