Circular seal: the seals of state-owned units, institutions, limited companies, self-employed individuals, government agencies, local social organizations, Sino-foreign joint ventures (cooperation) and wholly foreign-owned enterprises are all circular seals (at present, they should be used the most and have the most types, among which the official seal is the main one). Specification: the diameter is generally as small as 3 cm and as large as 6 cm.
Legal basis: Measures of People's Republic of China (PRC) Municipality on the Administration of Seals.
Article 3 The term "seal" as mentioned in these Measures refers to the official seal and personal seal with legal effect.
The term "official seal" as mentioned in these Measures refers to the legal names of state power organs, party and government organs, judicial organs, organs participating in and discussing state affairs, armed forces, armed police, democratic parties, trade unions, Communist Youth League, women's federations and other organs, organizations, enterprises and institutions, civil affairs departments and registered non-governmental organizations, neighborhood committees, deliberation and coordination institutions and non-permanent institutions, as well as special seals for contracts, finance, taxation, invoices and other businesses with legal names.
The term "personal seal with legal effect" as mentioned in these Measures refers to the seal of the legal representative of the state power, the party and government, the judiciary, participating in the deliberation and discussion of state affairs, the army, the armed police, democratic parties, trade unions, the Communist Youth League, women's federations and other organs, organizations, enterprises and institutions, civil organizations registered by the civil affairs department, neighborhood (village) committees, deliberation and coordination institutions, non-permanent institutions and the person in charge of their financial departments.