I have taken a chest X-ray in other hospitals. Can I apply for a health certificate?

Of course. According to the "Regulations on Handling Health Certificates by the Health Administrative Department of Fujian Province", after the applicant provides new information, the medical institution shall re-examine and apply for a new health certificate. Applicants with health certificates should regularly go to medical institutions for a free physical examination every year to ensure the authenticity and effectiveness of chest radiographs.