The seal on the RMB is a symbol of the power of the national banknote issuing agency and an internationally accepted banknote issuing factor. The president's signature is printed on the banknotes of many countries in the world. For example, the name of the euro is written in Latin and Greek, and the abbreviation of the European Central Bank and the signature of the governor of the central bank are expressed on the paper money in five official languages used by the European Union, such as BEC, ECB, EZB, EKT and EKP.