關於「Fire rated door」標籤，搜尋引擎有相關的訊息討論：

Fire Rated Door and Frame Labels / Ratings - archtoolbox.com2021年5月19日 · Fire rated doors and frames are covered, including a chart of the minute/hour ratings, maximum glass size, and other requirements.Chart of Door Ratings and... · Required Door Ratings Based...缺少字詞： tw | 必須