MDJ-300K Gold purity Tester's video
50370 plays · 2017-06-30
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Product description
XIONGFA MDJ-300K hanging water method gold purity Tester, also known as water specific gravity gold Tester, the measurement range is 5g~ 300g, MDJ-300K gold purity Tester can measure gold K number, specific gravity value and precious metal fineness (content or purity%) mixing ratio.