div class=trans-pagebuttonPage 1button div class=trans-image a href=https:reader042fdocumentsnetreader042viewer20220226025b53629b7f8b9a1f648bb392html5page1jpg target=_blank amp-img class=trans-thumb alt=Page 1: · It supersedes BS 1139-11:199 tube with a wall thickness of 3 principle changes are containe National forewor BS EN 39:2001 ot for Resale e de Stassart 36 B-1050 Brussels src=https:reader042fdocumentsnetreader042viewer20220226025b53629b7f8b9a1f648bb392html5thumbnails1jpg width=142 height=106 layout=responsive amp-imga divdivdiv class=trans-pagebuttonPage 2button div class=trans-image a href=https:reader042fdocumentsnetreader042viewer20220226025b53629b7f8b9a1f648bb392html5page2jpg target=_blank amp-img class=trans-thumb alt=Page 2: · It supersedes BS 1139-11:199 tube with a wall thickness of 3 principle changes are containe National forewor BS EN 39:2001 ot for Resale e de Stassart 36 B-1050 Brussels src=https:reader042fdocumentsnetreader042viewer20220226025b53629b7f8b9a1f648bb392html5thumbnails2jpg width=142 height=106 layout=responsive amp-imga divdivdiv class=trans-pagebuttonPage 3button div class=trans-image a href=https:reader042fdocumentsnetreader042viewer20220226025b53629b7f8b9a1f648bb392html5page3jpg target=_blank amp-img class=trans-thumb alt=Page 3: · It supersedes BS 1139-11:199 tube with a wall thickness of 3 principle changes are containe National forewor BS EN 39:2001 ot for Resale e de Stassart 36 B-1050 Brussels src=https:reader042fdocumentsnetreader042viewer20220226025b53629b7f8b9a1f648bb392html5thumbnails3jpg width=142 height=106 layout=responsive amp-imga divdivdiv class=trans-pagebuttonPage 4button div class=trans-image a href=https:reader042fdocumentsnetreader042viewer20220226025b53629b7f8b9a1f648bb392html5page4jpg target=_blank amp-img class=trans-thumb alt=Page 4: · It supersedes BS 1139-11:199 tube with a wall thickness of 3 principle changes are containe National forewor BS EN 39:2001 ot for Resale e de Stassart 36 B-1050...