第十一条建筑构件和建筑材料的防火性能必须符合国家标准或者行业标准。
Article 11 the fire proof performance of constructional elements and construction materials must conform to the state standards or industrial standards.
第十一条建筑构件和建筑材料的防火性能必须符合国家标准或者行业标准。
Article 11 the fire proof performance of constructional elements and construction materials must conform to the state standards or industrial standards.
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