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Big synthetic testing stone – FOV

Testing stones to determine silver and gold content. Rub the tester tip on the item to be tested, then pour a few drops of acid solution to determine the precious metal content. If the title is correct the filing created rubbing on the stone will stay on the stone, otherwise the acid will melt it.

Size: 70x90x3 mm

1 in stock

13,70 IVA esclusa

1 in stock

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Reliable delivery with TNT courier (2-5 working days)

Assistenza post-vendita garantita

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FOV is a brand of

Via del Lavoro, 1
36050 Bressanvido (VI) – Italy