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<title><![CDATA[EC21 Product Catalogs - portal frame]]></title>
<link><![CDATA[https://www.ec21.com/ec-market/portal_frame--2851/1/portal frame.html]]></link><item>
<title><![CDATA[PPF System]]></title><link><![CDATA[https://dailsteel.en.ec21.com/PPF_System--4798003_4798004.html]]></link><description><![CDATA[Portal Frame and DIS system were grafted to introduce PPF system, a medium and large scaled new frame system. 2. PPF SYSTEM Composition 
3. PPF SYSTEM Design The flange is designed as a pentagon to g]]></description><pubDate><![CDATA[20101005]]></pubDate></item>

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