1,here is a list of my requirements,for which i'd like to have your lowest quotations,C.I.F.Vancouver.

1 意译一下的话,就是 这张清单列出了我要的货品,我希望你们给我温哥华到岸价的最低价格.C.I.F是外贸专业用语,翻译成到岸价不一定准确,可以百度一下,很多资料的.
2 for which 引导定语从句的,which代指上面的requirements,for实际上是your lowest quotations C.I.F.Vancouver for (my requirements),后半句理解起来就是 i'd like to have your lowest quotations C.I.F.Vancouverfor my requirements