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Gemological refractometer(RGM700 gem)

VANCO INDUSTRIES CO.,LTD

Gemological refractometer(RGM700 gem)

Gemological refractometer(RGM700 gem)

RGM700 The kinds of gem can be precisely determined in accordance with the measured value of refractive index because every kind of gem has its inherent refractive index. Besides, index of double of ...

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