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Gold Purity Content Detector For Precious Metal Analysis, Rechargeable Electronic Gold Density Meter, Supports Connection To Printer + Non-Destructive Testing, For Pawnbrokers 120K(120K)

Gold Purity Analyzer Precious Metal Densimeter For Accurate Karat Testing - 0.01G Resolution For Gold, Silver, Platinum Density Measurement - 300K(1200K)

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Digital Gold Purity Tester | Instant Precious Metal Analyzer For 1-24K Gold, Platinum, Palladium | Non-Destructive Testing | Portable Rechargeable For Pawn Shop, Jeweler XF-600K(Mdj/300K)