[经] application for amendment of letter of credit

xìn yòng zhèng xiū gǎi shēn qǐng shū ㄒㄧㄣˋ ㄩㄥˋ ㄓㄥˋ ㄒㄧㄡ ㄍㄞˇ ㄕㄣ ㄑㄧㄥˇ ㄕㄨ