The health certificates of the take-away platform are universal, and the general physical examination time is from Monday to Thursday morning 10. You can get a health certificate in a week or so.
Because you need a blood test to apply for a health certificate, you should remember to have an empty stomach and not drink water before the blood test. The first two are more formal, and the cost is probably around 50 yuan. Others are not standardized and may be false certificates. 40 yuan is ok, but I won't check you carefully.