Explosion proof and protection class for instrument shall be met according to the requirements of Technical Specification, and relevant quality certificate documents shall be provided.

必须满足技术规格书对仪表防爆及防护等级的要求，并提供相应的质量证明文件。

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And achieved a national home inspection organizations that explosion-proof certificate issued.

且均取得了国家指家的检验机构颁发的防爆合格证。

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And achieved a national home inspection organizations that explosion-proof certificate issued.

且均取得了国家指家的检验机构颁发的防爆合格证。

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