Incoterms are three letter trade terms related to common contractual sales practices. The incoterms rules are intended primarily to clearly communicate the trasks, costs and risks associated with the transportation and delivery of goods.
Mailing List Discussion <https://groups.google.com/d/msg/tryton/qXZQ0nzHC2w/vQB6Q2nTcZ0J>
_Blueprint from Tryton wiki <https://code.google.com/p/tryton/wiki/Incoterms>
_Wikipedia about Incoterms <https://en.wikipedia.org/wiki/Incoterms>
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