Refractive Index Liquid Series M 1.81 For Gempro Refractometer Prop 65 - Nickel This is a stretching technique

This is a stretching technique that also forms metal to the underlying stake

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Refractive Index Liquid Series M 1.81 For Gempro Refractometer Prop 65 - Nickel This is a stretching techniqueRefractive Index Liquid Series M 1. 81 is formulated for use with the GemPro Refractometer to obtain accurate gemstone refractive index readings. This contact liquid creates the necessary optical interface between the stone and prism, ensuring clear shadow edges and reliable measurement results. Features Series M refractive index liquid rated at 1. 81 Designed for use with the GemPro Refractometer Provides proper optical contact between gemstone and