Thank you for using the certificate query system of this website. The tips related to this operation are as follows:

• In order to facilitate your query, the system can easily enter the database system by simply entering the certificate number.
• Please fill in the certificate numbers in sequence.
• This system is not case sensitive.
• This system is only used to confirm the validity of the certificate you inquired about. As for the relevant details of the product corresponding to the number, it can only be obtained from this institution with the written consent of the executor.