It is a trade by which بستانکار asks the debtor to pay you a certain amount in the history of the meeting, in the face of a third party or a third party, or a person who exports you, and who is issued for you, is called a beneficiary. For you, it is usually common to transfer capital and buy goods and sell goods and other domestic and foreign trade affairs, but the stiffness between the brokerage and buyers is exchanged. In addition to signing or stamping your word for you, the amount of it and its history of Tahrir and its history, the name of you stuck, the location of the domain, the name of the beneficiary, the number of leaves (first, second, third). You have the following types: A- you foreigners, the location of the two different countries. (b) For you, the place where it is exported and in a country.