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1.79 RI LIQUID



 Description

Refractive index oil for gem refractometer, RGM-600, RGM-700, RGM-800 and RGM-900 only. Without the refractive index oil, the traditional gem refractometer can‘t test any gemstones!

Specification:
1.79 +/-0.01RI at 28‘C
3ml/bottle(10g )

 
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