div class=ts-pagebuttonPage 1button div class=ts-image amp-img class=ts-thumb alt=Page 1: Prestressed Concpdf · 2020 9 10 · ments of BS 2691: 1969 Strands A group of either seven or 19 wires wound in helical form complying with the require- ments of BS 3617: 1971 src=https:reader035vdocumentsnetreader035viewer2022071501612094ded82be828835f69d3html5thumbnails1jpg 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: Prestressed Concpdf · 2020 9 10 · ments of BS 2691: 1969 Strands A group of either seven or 19 wires wound in helical form complying with the require- ments of BS 3617: 1971 src=https:reader035vdocumentsnetreader035viewer2022071501612094ded82be828835f69d3html5thumbnails2jpg width=142 height=106 layout=responsive amp-img divdivdiv class=ts-pagebuttonPage 3button div class=ts-image amp-img class=ts-thumb alt=Page 3: Prestressed Concpdf · 2020 9 10 · ments of BS 2691: 1969 Strands A group of either seven or 19 wires wound in helical form complying with the require- ments of BS 3617: 1971 src=https:reader035vdocumentsnetreader035viewer2022071501612094ded82be828835f69d3html5thumbnails3jpg width=142 height=106 layout=responsive amp-img divdivdiv class=ts-pagebuttonPage 4button div class=ts-image amp-img class=ts-thumb alt=Page 4: Prestressed Concpdf · 2020 9 10 · ments of BS 2691: 1969 Strands A group of either seven or 19 wires wound in helical form complying with the require- ments of BS 3617: 1971 src=https:reader035vdocumentsnetreader035viewer2022071501612094ded82be828835f69d3html5thumbnails4jpg width=142 height=106 layout=responsive amp-img divdivdiv class=ts-pagebuttonPage 5button div class=ts-image amp-img class=ts-thumb alt=Page 5: Prestressed Concpdf · 2020 9 10 · ments of BS 2691: 1969 Strands A group of either seven or 19 wires wound in helical form complying with the require- ments of BS 3617: 1971 src=https:reader035vdocumentsnetreader035viewer2022071501612094ded82be828835f69d3html5thumbnails5jpg width=142 height=106 layout=responsive amp-img divdiv