外贸业务开发信怎么写?完整的

dear ***:
learning from internet as you are *****,先写从哪看到买家的信息,再写写你了解买家的经营情况等.
we are the **** Co., 再介绍本公司的情况.we will appreciate if we can establish business relationship in the near future.
Enclosed our products' cataloge and price list for your reference.If any information not
appeared in it ,please let us know,we will give you the detail about it!
we look forward you earliest reply!