跟单信用状业务

[经] documentary credit operation

gēn dān xìn yòng zhuàng yè wù ㄍㄣ ㄉㄢ ㄒㄧㄣˋ ㄩㄥˋ ㄓㄨㄤˋ ㄧㄝˋ ㄨˋ