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<title><![CDATA[EC21 Product Catalogs - optical frames 2009]]></title>
<link><![CDATA[https://www.ec21.com/ec-market/optical_frames_2009--0711/1/optical frames 2009.html]]></link><item>
<title><![CDATA[Best Price High Quality Double Glazed Tempered Glass Window Manufacturer]]></title><link><![CDATA[https://gebaohua.en.ec21.com/Best_Price_High_Quality_Double--4122386_11580148.html]]></link><description><![CDATA[Optical Properties The visible light transmittance of insulated glass systems is normally in the range of 70-80% and the visible light reflectance is in the range of 10-48%;2. Thermal Properties The ]]></description><pubDate><![CDATA[20220602]]></pubDate></item>

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