5. We learn from ... that your firm specializes in ..., and would like to establish business relationship with you.
承……的介绍，获悉你们是……有代表性的进口商之一。
6. Through the courtesy of.... we have learned that you are one of the representative importers of ...
据纽约司密斯公司所告，得悉你公司名称和地址，并得知你们…日本东京商会已把你行介绍给我们。
7. Your name and address has been given to us by Messrs. J. Smith & Co., Inc., in New York, who have informed us that your firm has been recommended to us by the Chamber of Commerce in Tokyo, Japan.
承贵地…银行通知，你们是…的主要进口商(出口商)，并有意与中国进行这些方面的贸易。
9. The.... Bank in your city has been kind enough to inform us that you are one of the leading importers (exporters) of ... and are interested in trading with China in these lines ...
据了解，你们是中国…(商品)有潜力的买主，而该商品正属我们的业务经营范围。
10. We are given to understand that you are potential buyers of Chinese ...,which comes within the frame of our business activities.