We are given to understand that you are potential buyers  of Chinese Green Tea,which comes within the fame of our business activities.

据了解，你们是中国绿茶有潜力的买主，而该商品正属于我们的经营范围。

We have the pleasure in introducing ourselves to you with a view to build up business relations with your firm.

我们有幸自荐，以期与你公司建立业务关系。

We are a state owned corporation,dealing exclusively in both import and export of Machinery and Equipment.

我们是一家国有公司，专营机械设备的进出口业务。

For the past five years,we have down a lot of business with your company.

在过去的五年里，我们与贵公司进行了大量的贸易。

We are now forwarding to you by air,one catalogue  and a few sample books for your reference.

现航邮去目录一份，及样本数册供参阅。

Please submit full specifications of your...together with the terms of payment and discount rate.

请提供你公司。。。各种详细规格，并告知付款条件和折扣率。