第一句：We have been importing and exporting all kinds of metals and minerals for thirty years.
我们经营各种金属和矿石的进出口业务已经有30年了。

A: We have been importing and exporting all kinds of metals and minerals for thirty years.
我们经营各种金属和矿石的进出口业务已经有30年了。
B: Your company really has a long history.
贵公司的历史很悠久啊。
A: Yes. And we have many customers and friends in over 80 countries and regions.
是的。我们的客户和朋友遍布世界80多个国家和地区。
B: Oh, great.
噢，那太棒了。

第二句：As a joint venture, our cooperation has won a prominent position in the field.
作为合资企业，我们在这个领域里地位突出，拥有众多合作伙伴。

A: As a joint venture, our cooperation has won a prominent position in the field.
作为合资企业，我们在这个领域里地位突出，拥有众多合作伙伴。
B: Hearing your introduction, we really have the interest to cooperate with you.
听了您的介绍，我们很有兴趣和贵方合作。
A: We will not disappoint you.
我们不会让您失望的。

知识延伸：

多年的经验，多个合作伙伴，在该领域的杰出地位都能够吸引你的客户。
其他表达法：
We have been handling leather shoes and gloves for more than 20 years.
我们经营皮鞋和手套业务已经有20多年了。