2. Copies of the legal status certification documents of the manufacturing (repair) unit (business license, institution legal person certificate, organization code certificate, certification materials produced outside the place of residence and filed by the administrative department for industry and commerce at the place of production). , and uploaded by tracking);
3. Proof of ownership of the production site for more than three years (such as lease agreement, self-owned real estate license, etc.). , scanned copy upload);
4. New product type approval certificate of measuring instruments or new product prototype test certificate of measuring instruments (the scope of the certificate should cover the applied products and upload scanned copies);
5. Measurement standard assessment certificate of the highest level measurement standard used for factory verification (if any) (upload scanned copy);
6. List of production equipment, process inspection equipment and ex-factory inspection (final inspection) equipment (scanning or uploading electronic files);
7. Verification certificate or calibration certificate/report of process testing equipment and measuring instruments for ex-factory inspection (scanned copies must be uploaded within the validity period);
8. Metrology management system, quality management system and corresponding record format (it must cover the requirements of the General Specification for Licensing Examination of Manufacturing Measuring Instruments and upload scanned or electronic files);
9. Product nameplate style, factory conformity confirmation style and necessary sealing instructions (scanned copy uploaded);
10. List of product drawings and process documents (scanned or electronic);
1 1. Self-evaluation report of measuring instrument licensed manufacturing enterprise (fixed format, download, fill in and upload);
12. certificate of measurement assurance ability (if any, upload scanned copy);
13. Technical standards and metrological verification regulations of the products to be applied for (they must cover the scope of the products to be applied for and must be current and effective; When applying for permission to repair measuring instruments) (scanned copy or electronic file upload);
14. Application Form for Measurement Business Change and its attachments (provided in case of major changes in production conditions such as name change and address change (change of production site)) (fixed format, download, fill in and upload);