div class=ts-pagebuttonPage 1button div class=ts-image amp-img class=ts-thumb alt=Page 1: vol 6 70 a JAN 1987 70 Sectional Caluculation Program for 1500 109 ILREQ cm4 407 It req cm4 1123 cm4 1098 1969 1970 1 2 1968 -163 Title 多室箱桁断面計算プログラム src=https:reader031vdocumentsusreader031viewer2022011920601d956cf6566030f36eaa14html5thumbnails1jpg 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: vol 6 70 a JAN 1987 70 Sectional Caluculation Program for 1500 109 ILREQ cm4 407 It req cm4 1123 cm4 1098 1969 1970 1 2 1968 -163 Title 多室箱桁断面計算プログラム src=https:reader031vdocumentsusreader031viewer2022011920601d956cf6566030f36eaa14html5thumbnails2jpg width=142 height=106 layout=responsive amp-img divdiv