我们的证明书以盖公章和局长签字为有效。

　　As a rule, our certificate is made out in Chinese and English.

　　通常证明书是用中文和英文开具的。

　　You may have another certificate showing the goods to be free from radioactive contamination.

　　你们还要出具另一份证明书，以证明货物没有受放射线污染。

　　Our goods must be up to export standards before the Inspection Bureau releases them.

　　我们的货物只有在符合出口标准后，商检局才予以放行。

　　Our Inspection Bureau will issue a Veterinary Inspection Certificate to show that the shipment is in conformity with export standards.

　　商检局将出具动物检疫证明书以证明货物符合出口标准。

　　Is it convenient for you to engage a surveyor？

　　你们联系公证方便吗？

　　We have the best surveyor, China Import and Export Commodity Inspection Bureau.

　　我们有最好的公证行，即中国进出口商品检验局。