Domestic companies use red printing, while foreign companies use black printing. Generally, the seals of domestic companies are red, while those of foreign companies are blue. Sometimes for the convenience of work, two similar seals are distinguished by two colors. The general seal shape is not clearly defined, but some special seals are: the invoice special seal is oval, the contract seal and customs declaration seal are mostly oval, the official seal is round, and foreign official seals are mostly oval and polygonal.

Official seals are like people's fingerprints. The signature seal made by state organs, organizations, enterprises and institutions in the name of their legal subjects is called the official seal, which is the administrative seal of the enterprise and represents the whole enterprise.

Seal definition

Seal, also known as seal, is stationery printed on a document to indicate identity or signature. Generally, seals are dyed with pigments before printing. Those that are not stained with pigment and will appear concave and convex after being printed on a flat surface are called steel seals, and some are wax prints printed on wax or wax or envelopes. Made of metal, wood, stone, jade, etc.