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gold extraction process

It is a method of making pure gold as in the past and is popularly used in ancient times Up until now.Extraction of gold by smeltingisdone with metallic mix gold. Scrap gold, jewelry gold, with gold components for more than 25%. Not suitable for metal gold plated surfaces. Ratio Gold alloy 1 Copper 1 Lead 2 1. Melt Metal all together.

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