Only the name is valid when signing the contract. A general contract takes effect after both parties sign or seal it. If there is no agreement that "signature and seal" will take effect, then only the signed contract will be effective. The signing of a contract by the parties shows that the conclusion of the contract belongs to the true intention of the parties and meets the conditions for the contract to take effect.

Legal objectivity:

Article 490 of the Civil Code of People's Republic of China (PRC): If the parties conclude a contract in the form of a contract, the contract is concluded when the parties sign, seal or fingerprint it. Before signing, sealing or fingerprinting, one party has fulfilled its main obligations, and the contract is established when the other party accepts it.