According to Japanese code, monolayer wall is admitted and second is planted fire prevention door has equal function, double deck wall is admitted to have the one fireproof property of the hour.

 
  • 根據日本法規,單層墻被承認和乙種防火門(mén)有同等的性能,雙層墻被承認有一小時(shí)的耐火性能。
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