div class=trans-pagebutton class=gotoPage data-page=1Page 1button div class=trans-imageimg data-url=documentaw-first-steel-39-2013-2-25-bs-1139-1990-metal-scaffolding-specificationhtmlpage=1 data-page=1 class=trans-thumb lazyload alt=Page 1: AW first steel P15unitedsteelpipecom2012PDF1-balck_steel_pipe6-EN 39 · 2013 2 25 · BS 1139-1990 METAL SCAFFOLDING SPECIFICATION max mm 480 FOR TUBES FOR USE IN SCAFFOLDING loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII= data-src=https:reader033fdocumentsusreader033viewer2022052809607b02f33a0a9b56e724d535html5thumbnails1jpg width=140 height=200 divdiv