Language points Widely used by importers and exporters, the letter of credit is also made available to tourists by their home banks so that they may draw foreign currency while traveling abroad. 制价爱行蜀易大考 15Language points Language points Widely used by importers and exporters, Widely used by importers and exporters, the letter of credit is also made the letter of credit is also made available to tourists by their home available to tourists by their home banks so that they may draw foreign banks so that they may draw foreign currency while traveling abroad. currency while traveling abroad