div class=ts-pagebuttonPage 1button div class=ts-image amp-img class=ts-thumb alt=Page 1: DEFINITIONS NFPA 80 Formed sheet steel members that · PDF file2007 Edition NFPA 80 Standard for Fire Doors and Other Opening Protectives 2007 Edition Chapter 3 Definitions 321* src=https:reader033vdocumentssitereader033viewer20220517185a71abc17f8b9ab1538cfaf5html5thumbnails1jpg width=142 height=106 layout=responsive amp-img divdivdiv class=ts-pagebuttonPage 2button div class=ts-image amp-img class=ts-thumb alt=Page 2: DEFINITIONS NFPA 80 Formed sheet steel members that · PDF file2007 Edition NFPA 80 Standard for Fire Doors and Other Opening Protectives 2007 Edition Chapter 3 Definitions 321* src=https:reader033vdocumentssitereader033viewer20220517185a71abc17f8b9ab1538cfaf5html5thumbnails2jpg width=142 height=106 layout=responsive amp-img divdivdiv class=ts-pagebuttonPage 3button div class=ts-image amp-img class=ts-thumb alt=Page 3: DEFINITIONS NFPA 80 Formed sheet steel members that · PDF file2007 Edition NFPA 80 Standard for Fire Doors and Other Opening Protectives 2007 Edition Chapter 3 Definitions 321* src=https:reader033vdocumentssitereader033viewer20220517185a71abc17f8b9ab1538cfaf5html5thumbnails3jpg width=142 height=106 layout=responsive amp-img divdivdiv class=ts-pagebuttonPage 4button div class=ts-image amp-img class=ts-thumb alt=Page 4: DEFINITIONS NFPA 80 Formed sheet steel members that · PDF file2007 Edition NFPA 80 Standard for Fire Doors and Other Opening Protectives 2007 Edition Chapter 3 Definitions 321* src=https:reader033vdocumentssitereader033viewer20220517185a71abc17f8b9ab1538cfaf5html5thumbnails4jpg width=142 height=106 layout=responsive amp-img divdivdiv class=ts-pagebuttonPage 5button div class=ts-image amp-img class=ts-thumb alt=Page 5: DEFINITIONS NFPA 80 Formed sheet steel members that · PDF file2007 Edition NFPA 80 Standard for Fire Doors and Other Opening Protectives 2007 Edition Chapter 3 Definitions 321* src=https:reader033vdocumentssitereader033viewer20220517185a71abc17f8b9ab1538cfaf5html5thumbnails5jpg width=142 height=106 layout=responsive amp-img divdivdiv class=ts-pagebuttonPage 6button div class=ts-image amp-img class=ts-thumb alt=Page 6: DEFINITIONS NFPA 80 Formed sheet steel members that · PDF file2007 Edition NFPA 80 Standard for Fire Doors and Other Opening Protectives 2007 Edition Chapter 3 Definitions 321* src=https:reader033vdocumentssitereader033viewer20220517185a71abc17f8b9ab1538cfaf5html5thumbnails6jpg width=142 height=106 layout=responsive amp-img divdiv