[经] uniform customs and practice for documentary credit

shāng yè gēn dān xìn yòng zhuàng tǒng yī guàn lì ㄕㄤ ㄧㄝˋ ㄍㄣ ㄉㄢ ㄒㄧㄣˋ ㄩㄥˋ ㄓㄨㄤˋ ㄊㄨㄥˇ ㄧ ㄍㄨㄢˋ ㄌㄧˋ