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<title><![CDATA[EC21 Product Catalogs - lens envelope]]></title>
<link><![CDATA[https://www.ec21.com/ec-market/lens_envelope--2673/1/lens envelope.html]]></link><item>
<title><![CDATA[Quartz Sight Glass]]></title><link><![CDATA[https://dynaflex52.en.ec21.com/Quartz_Sight_Glass--3159123_3164136.html]]></link><description><![CDATA[envelope of halogen lamps, which must operate at a high envelope temperature to achieve their combination of high brightness and long life.
The combination of strength, thermal stability, and UV tran]]></description><pubDate><![CDATA[20081201]]></pubDate></item>

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