You don't need to go out for new engraving or supplementary engraving. You can do it quickly on Alipay homepage or WeChat applet, and you can do it by SF Express. (At present, all the seals on the side of Run Zhengtong provide customers with formal filing procedures, which is more reassuring and more formal than ordinary shops.)

Engraving seals need to be filed (except for corporate seals, which are not filed in some places). Guilty is called private engraving of official seals, which is caused by not filing.

generally, the information about the procedures is: photo of the original and duplicate business license+photo of the legal person's ID card+photo of the hand-held ID card (there may be some differences from place to place). Baidu has this information on it.