[经] authorization sheet for purchases of exchange

goù jìn wài huì hé dìng dān ㄍㄡˋ ㄐㄧㄣˋ ㄨㄞˋ ㄏㄨㄟˋ ㄏㄜˊ ㄉㄧㄥˋ ㄉㄢ