如何写好一封开发信

开发信要点：
说明三点即可：你来自哪里，做什么的，有什么优势
1..简短；
2.正文中最好不要带网址，否则很容易被外国服务器拦截；
3.少用主动语态，多用被动语态

模板：
Hi Kelvin,

Glad to hear that you're on the market for flashlight and other promotional items.

This is C from *** Ltd in China. We specialized in flashlights and premiums for 10 years, with the customers of Coca-Cola, Craft, Pepsi, etc., and hope to find a way to cooperate with you!

Please find the pictures with models and different packaging in attachment. An American guy purchased this model in BIG quantity last year. I would like to try now, if it's suitable for Europe.

FREE SAMPLES can be sent on request. Call me, let's talk more!

Thanks and best regards,