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<title><![CDATA[EC21 Product Catalogs - fr4 ccl]]></title>
<link><![CDATA[https://www.ec21.com/ec-market/fr4_ccl--2673/1/fr4 ccl.html]]></link><item>
<title><![CDATA[FR4 PCB]]></title><link><![CDATA[https://greenstone23.en.ec21.com/FR4_PCB--11910388_11910395.html]]></link><description><![CDATA[FR4 boards. Originally, FR4 was used as an insulating layer for the PCB. Next FR4 manufacturer adds a layer of copper to both sides of the FR4 board. This makes it a CCL (copper clad laminate). Thank]]></description><pubDate><![CDATA[20240311]]></pubDate></item>

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