div class=trans-pagebutton class=gotoPage data-page=1Page 1button div class=trans-imageimg data-url=document-12-doc-xc-dinh-dng-cc-k-hiu-vat-liu-thut-ng-ting-anh-vithtmlpage=1 data-page=1 class=trans-thumb lazyload alt=Page 1: tailieudientulrctnueduvntailieudientulrctnueduvnUploadCollectionbriefBrief_61757_2018091808074312 Doc xác dinh dúng các ký hiêu vat liêu thuât ngù tiêng loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII= data-src=https:reader033fdocumentpubreader033viewer20220416155e3b35bf62c64d220653d294html5thumbnails1jpg width=140 height=200 divdivdiv class=trans-pagebutton class=gotoPage data-page=2Page 2button div class=trans-imageimg data-url=document-12-doc-xc-dinh-dng-cc-k-hiu-vat-liu-thut-ng-ting-anh-vithtmlpage=2 data-page=2 class=trans-thumb lazyload alt=Page 2: tailieudientulrctnueduvntailieudientulrctnueduvnUploadCollectionbriefBrief_61757_2018091808074312 Doc xác dinh dúng các ký hiêu vat liêu thuât ngù tiêng loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII= data-src=https:reader033fdocumentpubreader033viewer20220416155e3b35bf62c64d220653d294html5thumbnails2jpg width=140 height=200 divdivdiv class=trans-pagebutton class=gotoPage data-page=3Page 3button div class=trans-imageimg data-url=document-12-doc-xc-dinh-dng-cc-k-hiu-vat-liu-thut-ng-ting-anh-vithtmlpage=3 data-page=3 class=trans-thumb lazyload alt=Page 3: tailieudientulrctnueduvntailieudientulrctnueduvnUploadCollectionbriefBrief_61757_2018091808074312 Doc xác dinh dúng các ký hiêu vat liêu thuât ngù tiêng loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII= data-src=https:reader033fdocumentpubreader033viewer20220416155e3b35bf62c64d220653d294html5thumbnails3jpg width=140 height=200 divdivdiv class=trans-pagebutton class=gotoPage...