1, China people's bank "on the implementation of

2. Article 41 of the Supreme People's Court's Provisions of the Supreme People's Court on Several Issues Concerning the Trial of Bills Disputes clearly stipulates that "the drawer's signature on a commercial bill is the special financial seal or official seal of a legal person or unit plus the signature or seal of its legal representative, person in charge of the unit or its authorized agent".

3. It is not uncommon to endorse and affix the official seal, and there is no problem.