Where can Dongguan identify the gold content? Or can general gold shops help identify? How to identify and how long it will take to produce results.

1 thought on “Where can Dongguan identify the gold content? Or can general gold shops help identify? How to identify and how long it will take to produce results.”

  1. Gold bricks or gold jewelry
    generally, there is no such instrument in the gold shop. You can go to the local precious metal testing institution to have a look.
    otherwise, you can use a simple method: quality / weight in water / 1.94 to get the approximate gold content

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