abbr. 产地证明书（certificate of origin）；由……转交（care of）
c/o //
You write c/o before an address on an envelope when you are sending it to someone who is staying or working at that address, often for only a short time. c/o is an abbreviation for "care of." 请转交
I will very appreciate if the C/O can be offered.
如能提供原产地证明，我将十分感谢。
C/O SHOWING INCONSISTENT NAME OF EXPORTER (I.E. LTD AND CORP LTD.).
产地证显示不正确的出口商名称(亦即有限公司和合作有限公司).
It's www dot C-O-M-P-4-S-S dotcom.
网址是 www.comp4ss.com。