Will the Social Security Bureau check the official seal?

Yes, although not all businesses need to be stamped, once stamped, you need to check whether it is an official seal. As long as the information required for handling business is complete, you don't need to bring your official seal to social security. With the official seal, it is convenient to stamp if there is a mistake. You can apply for authorization and directly authorize personnel to stamp, as long as the director of social security signs it. Unstamped labor contracts and valid labor contracts only need the signature and seal of the employer and the employee himself, and do not need the seal of the labor bureau. The text of the labor contract signed now is a standardized labor contract based on the labor law and approved by the labor bureau. If the labor contract is signed in triplicate, one of them is submitted to the labor bureau, but in actual work, it is in duplicate, one for the employer and one for the laborer. In short, as long as both parties sign and seal, there is no need for the Labor Bureau to seal.