guarantee letter

基本解釋

They suggested you may send a guarantee letter to your agent company in USA .
他們建議由你們寫一份保函到美國的代理公司。
club.china.alibaba.com
Abstract:The ship industry develops slowly at present, and the risk of ship guarantee letter appears gradually.
摘要：船舶行業(yè)目前處于低谷，船舶保函業(yè)務風險日漸顯現(xiàn)。
Provisional countervailing measures may be taken in the form of levying provisional countervailing duty under the guarantee of caution money or guarantee letter.
臨時反補貼措施采取以保證金或者保函作為擔保的征收臨時反補貼稅的形式。
rondeng.blog.163.com

For example, no one reading this letter can guarantee that they will be alive the next day.
ECONOMIST: When I'm 64
Gennady Onishchenko, Russia's chief sanitary official, told Ekho Moskvy radio that he has sent a letter to the European Commission requesting a guarantee that meat products sold to Russia don't contain horse meat.
NPR: Russia Seeks EU Guarantees Over Horse Meat Scandal
No PR firm can guarantee you editorial stories, but good publicists craft your press release or pitch letter (less formal presentation) to interest the media.
FORBES: By Robert Wynne

保函
Part one is summarizing to demand guarantee letter in international contract project.
第二部分國際承包工程獨立保函法律分析。