To：londe woolen produces
From: Angel clothes store
We are told that your company is the biggest on producing knitwear in londo. we are principally interested in your traditional sweater and would like to request a sample.
Please also send information on any other knitwear that your company produces and a current price list.
If you plan to take part in Beijing Trade Fair at the end of this month,please inform us of you stand number so that we can contact you .
Thank you in advance for your attention.
sincerely yours
John.
回信时用英语写。

你得说明自己的意思，这样回信者才好根据你的意思来回信啊。