All material and documents needed for visa

Hassan, to apply for a Chinese work Z type, you should prepare the relevant documents including your passport and its photocopy, the application form, 2 passport-style photos, the work permit from your employer. Your wife can apply for an S type, and she needs to provide passport and the copy, 2 passport-style photos, a completed application form, an invitation letter from your company, as well as your marriage certificate and transportation arrangement as well as others. Then she can try to submit the application to China embassy to apply for that.