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diffraction grating gem spectroscope
Selling leads
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...Gem Torch Special full-spectrum light source for gemstones; it can be used as a light source for gemstone spectroscope and assist in observing ...
2024-12-09 13:32:31
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...Gem Torch Special full-spectrum light source for gemstones; it can be used as a light source for gemstone spectroscope and assist in observing ...
2024-12-09 13:32:31
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... needs to examine and characterize gemstones with accuracy and precision: A kit includes 9 items of: 1. Handheld Grationg spectroscope(FGS-1) 2. ...
2024-12-09 10:57:50
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...Gem Torch Special full-spectrum light source for gemstones; it can be used as a light source for gemstone spectroscope and assist in observing ...
2024-12-09 13:32:31
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