While purchasing gold, it is necessary to check purity so that fraud can be avoided. The real gold can be identified by looking at the hallmark and HUD code. Apart from this, domestic tests like water ...
A 1993-made China's videotape help you to become an expert to identify real gold and silver. There are six parts of this video: 1. Appraisal skills and methods of using tools (29 min.) 2. Gold ...
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