How to Avoid Fake Coins - Testing Coins for Metal Composition
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3:35
Locals, beware: That gold you bought could be fake
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14:05
Ultrasound thickness gauge testing of platinum, silver, and other materials.#ElpidanET400 (part 1)
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23:55
Update On The Recent Sigma Precious Metal Verifier Test Video
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16:39
Coloque sal no ferro de solda e resultados surpreendentes! Desvendando os segredos da soldagem
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7:32
Medidor de espesor ultrasónico modelo GM100
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32:12
Wolfgang Grupp explodiert auf unserem Event
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9:55
Invenção chocante de encanador de 60 anos! Fonte GRATUITA INFINITA de tubos de PVC/pneus de carro
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10:50