Nondestructive testing of boiler and pressure vessel inspection institution is an essential factor of quality system.

锅炉压力容器检验机构的无损检测是质量体系要素。

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Quality certificate of product testing issued by an inspection institution with appropriate qualifications;

and （三）具有相应资质的检测机构出具的产品检测合格证明；

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Quality certificate of product testing issued by an inspection institution with appropriate qualifications;

and （三）具有相应资质的检测机构出具的产品检测合格证明；

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