I is a company specialized in machinery export trading company.

我公司是一家专门从事机械出口的贸易公司.

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Can I speak to Mr. Chao of the Export Trading Company?

我找进出中贸易公司赵先生接电话好 吗 ?

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I am in a professional export trading company.

我公司是专业的出口贸易公司.

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