2. Check the archived seal. Inquire through the official seal management platform, and enter the enterprise name or registration number to view the official seal filing information.
3. Contact the relevant personnel of the enterprise. Contact the enterprise by phone or email to ask for information about the official seal code.
4. Inquiries from the local industrial and commercial bureau. You can consult the industrial and commercial bureau where the enterprise is located, and they will have the corresponding seal number registration record.
5. Query the comprehensive hall of the Municipal Public Security Bureau. For the work needs involving public security, procuratorial, legal and related administrative institutions, you can hold the letter of introduction issued by the relevant units to inquire at the comprehensive hall of the Municipal Public Security Bureau.
6, official seal production unit query. If you need to check the serial number of the official seal, you can also check with the production unit of the official seal. It should be noted that the meaning of the official seal number in the company is equivalent to the certificate number of the personal ID card. If the online inquiry service is opened, it may provide necessary conditions for criminals to commit fraud. Therefore, it is necessary to ensure information security when querying the official seal number.