Auto Refractor Adopt world-advanced objective technology of optometry
RM-100 Auto Refractor[ Technical parameter ] Vertex distance(VD)0.0,12.0,13.75Spherical surface-20.0020.00When VD is 12mm....
digital gemstone refractometer, gemstone refractometers
Dual purpose for refractive index and reflectivity
Digital display
digital gemstone refractometer ...
digital gem refractometer, gemstone refractometers
Dual purpose for refractive index and reflectivity
Digital display
gemstone refractometers Description The...
Hand Held Refractometer:
1.Refractometer for Brake Oil,
2.Hand held refractometer,
3.Fashion design.
Hand Held Refractometer:1.Refractometer for Brake Oil,2.Hand held refractometer,3.Fashion...
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