div class=ts-pagebuttonPage 1button div class=ts-image amp-img class=ts-thumb alt=Page 1: Formulation de Béton B25pdf src=https:reader035vdocumentsfrreader035viewer202208220755cf98e9550346d0339a6960html5thumbnails1jpg 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: Formulation de Béton B25pdf src=https:reader035vdocumentsfrreader035viewer202208220755cf98e9550346d0339a6960html5thumbnails2jpg width=142 height=106 layout=responsive amp-img divdiv