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<title><![CDATA[EC21 Product Catalogs - calcium fluoride optical]]></title>
<link><![CDATA[https://www.ec21.com/ec-market/calcium-fluoride-optical--271399/1/calcium fluoride optical.html]]></link><item>
<title><![CDATA[PTC Computerized Glass Polariscope Stress Magnifier]]></title><link><![CDATA[https://ptc0210.en.ec21.com/PTC-Computerized-Glass-Polariscope-Stress--11227405_11234511.html]]></link><description><![CDATA[optical crystals, such as calcium fluoride
Instrument parameters 
Detecting range 
0-280nm
Magnification 
1-24 times 
Viewing field 
max 176×132mm min 6.9×5.2mm
Accuracy
about ±1.5nm (scale compas]]></description><pubDate><![CDATA[20220328]]></pubDate></item>

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