What seal does catering use to prove the loss of health certificate?

Official seal. According to the website of Nanning Health and Wellness Committee in Guangxi, it can be known that the certificate of loss of health certificate needs to be stamped with the official seal of the enterprise, company, place and store where I work (if there is no official seal, it needs to be signed by a legal person instead of a handprint), and the original ID card of the lost person should be handled at the window.