A credit card is a bank card issued by a bank with a certain overdraft limit.

A letter of credit refers to a written guarantee document issued by the issuing bank to a third party at the request of the applicant and in accordance with its instructions, containing a certain amount of money and payment within a certain period against documents that comply with the regulations. . Letter of credit is the most important and commonly used payment method in international trade.

Credit mainly refers to loans, but also includes bank acceptance bills, discounts and other lending activities between banks and individuals or enterprises.

Credit cooperatives are collectively owned financial institutions and handle the same business as banks.