▼耐火建築物2010/01/02 13:26 (C) 株式会社Forex/季楽な家開発奮闘記
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▼耐火建築物2010/01/02 13:26 (C) 株式会社Forex/季楽な家開発奮闘記
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(C) Stepup Communications Co.,LTD. All Rights Reserved Powered by samidare. System：enterpriz [network media]
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よみ：たいかけんちくぶつ
主要構造部を耐火構造とし、延焼の恐れのある開口部を防火戸とした建築物。