div class=trans-pagebutton class=gotoPage data-page=1Page 1button div class=trans-imagea href=https:reader043fdocumentsnetreader043viewer20220412175e05b80bc4d203762b133b78html5page1jpg target=_blank img data-url=document7813-2007pdf-phn-rnu-th-d-chun-bi-dltac-dun-si-trong-etanol-rihtmlpage=1 data-page=1 class=trans-thumb lazyload alt=Page 1: tieuchuanmardgovvntieuchuanmardgovvnDocumentsUploadsTCVN 7813-2007pdf · Phân rnâu thù dã chuån bi dLtac dun sôi trong etanol rði loc và rüa chát rån bång etanol loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII= data-src=https:reader043fdocumentsnetreader043viewer20220412175e05b80bc4d203762b133b78html5thumbnails1jpg width=140 height=200 adivdivdiv class=trans-pagebutton class=gotoPage data-page=2Page 2button div class=trans-imagea href=https:reader043fdocumentsnetreader043viewer20220412175e05b80bc4d203762b133b78html5page2jpg target=_blank img data-url=document7813-2007pdf-phn-rnu-th-d-chun-bi-dltac-dun-si-trong-etanol-rihtmlpage=2 data-page=2 class=trans-thumb lazyload alt=Page 2: tieuchuanmardgovvntieuchuanmardgovvnDocumentsUploadsTCVN 7813-2007pdf · Phân rnâu thù dã chuån bi dLtac dun sôi trong etanol rði loc và rüa chát rån bång etanol loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII= data-src=https:reader043fdocumentsnetreader043viewer20220412175e05b80bc4d203762b133b78html5thumbnails2jpg width=140 height=200 adivdivdiv class=trans-pagebutton class=gotoPage data-page=3Page 3button div class=trans-imagea href=https:reader043fdocumentsnetreader043viewer20220412175e05b80bc4d203762b133b78html5page3jpg target=_blank img data-url=document7813-2007pdf-phn-rnu-th-d-chun-bi-dltac-dun-si-trong-etanol-rihtmlpage=3 data-page=3 class=trans-thumb lazyload alt=Page 3: tieuchuanmardgovvntieuchuanmardgovvnDocumentsUploadsTCVN 7813-2007pdf · Phân rnâu thù...