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category:
Testers
country_of_origin:
USA
manufacturer:
Grobet USA®
mpn:
56.715
subcategory:
Testing Supplies
type:
Testing Stones
Product Description
Grobet USA® - 56.715
Natural testing stones are used with solutions and test needles to determine karat values of precious metals. The stones are high quality and very economical.
Measures: 2-1/2″ x 1- 1/2″ x 6 mm