Tesztkő 60x40 mm

Tesztkő


A dark stone, which is used to test gold karat as well as silver and platinum.

Tesztkő 100x120 mm
Tesztkő 60x40 mm
Tesztkő 60x80 mm
Tesztkő 80x100 mm

A dark stone, which is used to test gold karat as well as silver and platinum.


The particular object that is to be tested, is scratched on the surface of the stone and a test acid solution determines the karat of the scratch.

    Érdekelhetné Önt