Presidium Refractive Index Meter II - Desktop Digital Tester
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Presidium Reflectivity Meter II | Sachi Tools
The New Presidium Refractive Index Meter Exclusively from iGem Instruments for January Makes Professional Gemstone Testing Simple, Easy, and Effective
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Presidium Refractive Index Meter II
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Presidium Refractive Index Meter II - Desktop Digital Tester
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Presidium Refractive Index Meter II - Desktop Digital Tester
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