The official seal refers to the seal used by organs, organizations, enterprises and institutions. Because the Ministry of Public Security has not made uniform provisions on the engraving procedure, the provisions on the engraving procedure vary from place to place. According to the different types of seals, the procedures are different.
It is best to use copper, stainless steel, ox horn or wood as the official seal, because when opening a company account in a bank, both red glue and photosensitive seal are soft materials, and the bank will not put them on record, so it is impossible to complete the printing procedures.