div class=ts-pagebuttonPage 1button div class=ts-image a href=https:reader042vdocumentinreader042viewer20220403215e57e6c0ba0ead19fa47bc5bhtml5page1jpg target=_blank amp-img class=ts-thumb alt=Page 1: · removed to assure accurate forming and rigid welding 5 Forming The flat strip steel is rolled into basic tubing 6 Welding Basic tubes are welded by a high frequency induction src=https:reader042vdocumentinreader042viewer20220403215e57e6c0ba0ead19fa47bc5bhtml5thumbnails1jpg width=142 height=106 layout=responsive amp-imga divdivdiv class=ts-pagebuttonPage 2button div class=ts-image a href=https:reader042vdocumentinreader042viewer20220403215e57e6c0ba0ead19fa47bc5bhtml5page2jpg target=_blank amp-img class=ts-thumb alt=Page 2: · removed to assure accurate forming and rigid welding 5 Forming The flat strip steel is rolled into basic tubing 6 Welding Basic tubes are welded by a high frequency induction src=https:reader042vdocumentinreader042viewer20220403215e57e6c0ba0ead19fa47bc5bhtml5thumbnails2jpg width=142 height=106 layout=responsive amp-imga divdivdiv class=ts-pagebuttonPage 3button div class=ts-image a href=https:reader042vdocumentinreader042viewer20220403215e57e6c0ba0ead19fa47bc5bhtml5page3jpg target=_blank amp-img class=ts-thumb alt=Page 3: · removed to assure accurate forming and rigid welding 5 Forming The flat strip steel is rolled into basic tubing 6 Welding Basic tubes are welded by a high frequency induction src=https:reader042vdocumentinreader042viewer20220403215e57e6c0ba0ead19fa47bc5bhtml5thumbnails3jpg width=142 height=106 layout=responsive amp-imga divdivdiv class=ts-pagebuttonPage 4button div class=ts-image a href=https:reader042vdocumentinreader042viewer20220403215e57e6c0ba0ead19fa47bc5bhtml5page4jpg target=_blank amp-img class=ts-thumb alt=Page 4: · removed to assure accurate forming and rigid welding 5 Forming The flat strip steel is rolled into basic tubing 6 Welding Basic tubes are welded by a high frequency induction src=https:reader042vdocumentinreader042viewer20220403215e57e6c0ba0ead19fa47bc5bhtml5thumbnails4jpg width=142 height=106 layout=responsive amp-imga divdivdiv class=ts-pagebuttonPage 5button div class=ts-image a href=https:reader042vdocumentinreader042viewer20220403215e57e6c0ba0ead19fa47bc5bhtml5page5jpg target=_blank amp-img class=ts-thumb alt=Page 5: · removed to assure accurate forming and rigid welding 5 Forming The flat strip steel is rolled into basic tubing 6 Welding Basic tubes are welded by a high frequency induction src=https:reader042vdocumentinreader042viewer20220403215e57e6c0ba0ead19fa47bc5bhtml5thumbnails5jpg width=142 height=106 layout=responsive amp-imga divdivdiv class=ts-pagebuttonPage 6button div class=ts-image a href=https:reader042vdocumentinreader042viewer20220403215e57e6c0ba0ead19fa47bc5bhtml5page6jpg target=_blank amp-img class=ts-thumb alt=Page 6: · removed to assure accurate forming and rigid welding 5 Forming The flat strip steel is rolled into basic tubing 6 Welding Basic tubes are welded by a high frequency induction src=https:reader042vdocumentinreader042viewer20220403215e57e6c0ba0ead19fa47bc5bhtml5thumbnails6jpg width=142 height=106 layout=responsive amp-imga divdivdiv class=ts-pagebuttonPage 7button div class=ts-image a href=https:reader042vdocumentinreader042viewer20220403215e57e6c0ba0ead19fa47bc5bhtml5page7jpg target=_blank amp-img class=ts-thumb alt=Page 7: · removed to assure accurate forming and rigid welding 5 Forming The flat strip steel is rolled into basic tubing 6 Welding Basic tubes are welded by a high frequency induction src=https:reader042vdocumentinreader042viewer20220403215e57e6c0ba0ead19fa47bc5bhtml5thumbnails7jpg width=142 height=106 layout=responsive amp-imga divdivdiv class=ts-pagebuttonPage 8button div class=ts-image a href=https:reader042vdocumentinreader042viewer20220403215e57e6c0ba0ead19fa47bc5bhtml5page8jpg target=_blank amp-img class=ts-thumb alt=Page 8: · removed to assure accurate forming and rigid welding 5 Forming The flat strip steel is rolled into basic tubing 6 Welding Basic tubes are welded by a high frequency induction src=https:reader042vdocumentinreader042viewer20220403215e57e6c0ba0ead19fa47bc5bhtml5thumbnails8jpg width=142 height=106 layout=responsive amp-imga divdivdiv class=ts-pagebuttonPage 9button div class=ts-image a href=https:reader042vdocumentinreader042viewer20220403215e57e6c0ba0ead19fa47bc5bhtml5page9jpg target=_blank amp-img class=ts-thumb alt=Page 9: · removed to assure accurate forming and rigid welding 5 Forming The flat strip steel is rolled into basic tubing 6 Welding Basic tubes are welded by a high frequency induction src=https:reader042vdocumentinreader042viewer20220403215e57e6c0ba0ead19fa47bc5bhtml5thumbnails9jpg width=142 height=106 layout=responsive amp-imga divdivdiv class=ts-pagebuttonPage 10button div class=ts-image a href=https:reader042vdocumentinreader042viewer20220403215e57e6c0ba0ead19fa47bc5bhtml5page10jpg target=_blank amp-img class=ts-thumb alt=Page 10: · removed to assure accurate forming and rigid welding 5 Forming The flat strip steel is rolled into basic tubing 6 Welding Basic tubes are welded by a high frequency induction src=https:reader042vdocumentinreader042viewer20220403215e57e6c0ba0ead19fa47bc5bhtml5thumbnails10jpg width=142 height=106 layout=responsive amp-imga divdivdiv class=ts-pagebuttonPage 11button div class=ts-image a href=https:reader042vdocumentinreader042viewer20220403215e57e6c0ba0ead19fa47bc5bhtml5page11jpg target=_blank amp-img class=ts-thumb alt=Page 11: · removed to assure accurate forming and rigid welding 5 Forming The flat strip steel is rolled into basic tubing 6 Welding Basic tubes are welded by a high frequency induction src=https:reader042vdocumentinreader042viewer20220403215e57e6c0ba0ead19fa47bc5bhtml5thumbnails11jpg width=142 height=106 layout=responsive amp-imga divdivdiv class=ts-pagebuttonPage 12button div class=ts-image a href=https:reader042vdocumentinreader042viewer20220403215e57e6c0ba0ead19fa47bc5bhtml5page12jpg target=_blank amp-img class=ts-thumb alt=Page 12: · removed to assure accurate forming and rigid welding 5 Forming The flat strip steel is rolled into basic tubing 6 Welding Basic tubes are welded by a high frequency induction src=https:reader042vdocumentinreader042viewer20220403215e57e6c0ba0ead19fa47bc5bhtml5thumbnails12jpg width=142 height=106 layout=responsive amp-imga divdivdiv class=ts-pagebuttonPage 13button div class=ts-image a href=https:reader042vdocumentinreader042viewer20220403215e57e6c0ba0ead19fa47bc5bhtml5page13jpg target=_blank amp-img class=ts-thumb alt=Page 13: · removed to assure accurate forming and rigid welding 5 Forming The flat strip steel is rolled into basic tubing 6 Welding Basic tubes are welded by a high frequency induction src=https:reader042vdocumentinreader042viewer20220403215e57e6c0ba0ead19fa47bc5bhtml5thumbnails13jpg width=142 height=106 layout=responsive amp-imga divdivdiv class=ts-pagebuttonPage 14button div class=ts-image a href=https:reader042vdocumentinreader042viewer20220403215e57e6c0ba0ead19fa47bc5bhtml5page14jpg target=_blank amp-img class=ts-thumb alt=Page 14: · removed to assure accurate forming and rigid welding 5 Forming The flat strip steel is rolled into basic tubing 6 Welding Basic tubes are welded by a high frequency induction src=https:reader042vdocumentinreader042viewer20220403215e57e6c0ba0ead19fa47bc5bhtml5thumbnails14jpg width=142 height=106 layout=responsive amp-imga divdivdiv class=ts-pagebuttonPage 15button div class=ts-image a href=https:reader042vdocumentinreader042viewer20220403215e57e6c0ba0ead19fa47bc5bhtml5page15jpg target=_blank amp-img class=ts-thumb alt=Page 15: · removed to assure accurate forming and rigid welding 5 Forming The flat strip steel is rolled into basic tubing 6 Welding Basic tubes are welded by a high frequency induction src=https:reader042vdocumentinreader042viewer20220403215e57e6c0ba0ead19fa47bc5bhtml5thumbnails15jpg width=142 height=106 layout=responsive amp-imga divdivdiv class=ts-pagebuttonPage 16button div class=ts-image a href=https:reader042vdocumentinreader042viewer20220403215e57e6c0ba0ead19fa47bc5bhtml5page16jpg target=_blank amp-img class=ts-thumb alt=Page 16: · removed to assure accurate forming and rigid welding 5 Forming The flat strip steel is rolled into basic tubing 6 Welding Basic tubes are welded by a high frequency induction src=https:reader042vdocumentinreader042viewer20220403215e57e6c0ba0ead19fa47bc5bhtml5thumbnails16jpg width=142 height=106 layout=responsive amp-imga divdiv