The application form for health certificate is collected at the place where the health certificate is processed. When you apply, just tick there and fill in the form.
Staff engaged in the food industry (restaurants, delicatessens, food processing shops) need to bring their ID cards and copies of business licenses to the municipal supervision office in their jurisdiction to issue health certificates and handle letters of introduction. If the unit issues a letter of introduction, it is required to register the personnel of the unit according to "name, gender, ID number and type of work" and affix the official seal of the unit.