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Cot Be Tong Va Luoi Thep Han loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader036vdocumentsinreader036viewer20220817185571f40349795947648ee3bahtml5thumbnails36jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=37Page 37button div class=ts-imageimg data-url=tcvn-1651-2008-thep-cot-be-tong-va-luoi-thep-hanhtmlpage=37 data-page=37 class=ts-thumb lazyload alt=Page 37: TCVN 1651-2008 Thep Cot Be Tong Va Luoi Thep Han loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader036vdocumentsinreader036viewer20220817185571f40349795947648ee3bahtml5thumbnails37jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=38Page 38button div class=ts-imageimg data-url=tcvn-1651-2008-thep-cot-be-tong-va-luoi-thep-hanhtmlpage=38 data-page=38 class=ts-thumb 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Cot Be Tong Va Luoi Thep Han loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader036vdocumentsinreader036viewer20220817185571f40349795947648ee3bahtml5thumbnails49jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=50Page 50button div class=ts-imageimg data-url=tcvn-1651-2008-thep-cot-be-tong-va-luoi-thep-hanhtmlpage=50 data-page=50 class=ts-thumb lazyload alt=Page 50: TCVN 1651-2008 Thep Cot Be Tong Va Luoi Thep Han loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader036vdocumentsinreader036viewer20220817185571f40349795947648ee3bahtml5thumbnails50jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=51Page 51button div class=ts-imageimg data-url=tcvn-1651-2008-thep-cot-be-tong-va-luoi-thep-hanhtmlpage=51 data-page=51 class=ts-thumb 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