According to China Travel. Com, it takes 2-5 days to get a health certificate in Hangzhou, and you can get it within one week at most.
According to the provisions of national laws and regulations, staff engaged in food, environment, labor, radiation, schools and pharmaceutical production and operation must have regular physical examinations and obtain health certificates before taking up their posts. Employees who are employed or go out to work should have physical examinations and establish health records, and students at school should also have regular physical examinations and establish standardized health records.