Print and prepare the seal and inkpad of the normative contract agreed by the relevant parties to the contract to ensure that the paper version is clear and standardized, and signed by the legal representative (authorized client) of the relevant parties to the contract. Stamp the cover and text of the paper contract at the corresponding positions where it needs to be stamped. At the final signature of the contract text, where there is a seal, dip the special seal for the contract in red inkpad, and then let the seal face up. Spread both sides of the contract pages evenly to ensure that the spacing between pages is not too wide or too narrow. The middle page can be slightly denser, and the first page and the last page should be left with more white space, which is slightly narrower than the diameter of the seal. Cover the riding seal, and cover the seal on one side of the flattened paper contract to ensure that the seal is clearly visible after flattening, and there are enough seals on the first page and the last page. 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. A contract shall be concluded in written form as stipulated by laws, administrative regulations or agreed by the parties. If the parties do not do this in writing, but one party has fulfilled its main obligations and the other party accepts it, the contract is established.