US$ 150.00
A direct-vision spectroscope designed for quick gem testing and colour analysis in your bench toolkit
The ring mandrel can be rotaed and set to any angle for the convenience of working
Contains a total of 17 depressions measuring up to 1-3/4in size
aluminum alloy and nylon
Shrink Kit of 12 Pens Repair Envelopes A direct-vision spectroscope designed for
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