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Portable Digital Refractometers PDR PDR-F Series
Introduction: It is an instrument that uses light to test the concentration of liquids or the refractive index of solids. It is mainly used to determine physical constants such as the refractive index, birefringence and optical properties of substances.
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Portable Digital Refractometers PDR-WN PDR-C PDR-K Series
Introduction: It is an instrument that uses light to test the concentration of liquids or the refractive index of solids. It is mainly used to determine physical constants such as the refractive index, birefringence and optical properties of substances.
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