LC中要求文件显示E-SDR Serial Number，是什么？
在加拿大 46A 单据要求里要求提供： + 1 copies required shipping document receipt issued by XXX or XXX or XXX or XXX, containing an E-SDR serial number, purchase order number and total amount. + 1 copy of Forwarders cargo receipt marked: Frei...华人论坛