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GB51249-2017 Construction Steel Structure Fireproof Technical Specification\[2], implemented from April 1, 2018.

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[Abstract]:
GB51249-2017 Construction Steel Structure Fireproof Technical Specification\[2], implemented from April 1, 2018.

GB51249-2017 Construction Steel Structure Fireproof Technical Specification\[2], implemented from April 1, 2018.

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