Signature refers to the general name of signature and seal. That is, the name of the party or the name of the unit is stamped. Its function means double insurance.
People's Republic of China (PRC) negotiable instrument law
Article 7 The signature on a negotiable instrument includes signature, seal or signature and seal.
The signature of the legal person or other organization that uses the bill shall be the signature of the legal person or other organization plus the signature of its legal representative or its authorized agent.
The signature on a bill of exchange shall be the real name of the party concerned.