Steel flange

<br>
<br>
<br> <style type="text/css">
<br> @page { margin: 2cm }
<br> h2.cjk { font-family: "Noto Sans CJK SC Regular" }
<br> h2.ctl { font-family: "FreeSans" }
<br> h1 { margin-bottom: 0.21cm }
<br> h1.western { font-family: "Liberation Serif", serif }
<br> h1.cjk { font-family: "Noto Sans CJK SC Regular"; font-size: 24pt }
<br> h1.ctl { font-family: "FreeSans"; font-size: 24pt }
<br> p { margin-bottom: 0.25cm; line-height: 120% }
<br> </style>
<br>
<br>
<br><h1 class="western" align="justify" style="margin-top: 0cm; margin-bottom: 0cm; border: none; padding: 0cm; line-height: 0.53cm;">
<br><span style="display: inline-block; border-top: none; border&amp