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<title><![CDATA[EC21 Product Catalogs - crystal patterns]]></title>
<link><![CDATA[https://www.ec21.com/ec-market/crystal-patterns--271399/1/crystal patterns.html]]></link><item>
<title><![CDATA[Computerized Polariscope]]></title><link><![CDATA[https://polariscopes.en.ec21.com/Computerized-Polariscope--11397650_11397669.html]]></link><description><![CDATA[if there is stress inside of these types
of products, light from he polarized lamp will be divided into 
different units, which produces optical interference phenomenon (ripple 
patterns) in turn.
]]></description><pubDate><![CDATA[20210611]]></pubDate></item>

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