Gtech Co.,LTD.

Gtech Co.LTD. High Quality&Good Service

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Gem Refractometers

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 Gem Refractometers

Gem Refractometers Built-in LED CL-181BI

Description BI means built-in LED Gem Tester Refractive index is one of most important optical parameter. Gloss of gem can be estimated by the ...
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Gem Refractometers Flashlight LED CL-181FL

Description FL means external LED with flashlight. Gem Tester Refractive index is one of most important optical parameter. Gloss of gem can be ...
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