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Steps To Extract Gold From Mobile

Steps To Extract Gold From Mobile

Apr 16, 2021 Here’s the step of how extract gold from old phones, laptops PCBs using etching solutions. Etching is traditionally the process of using strong acid or mordant to cut into the unprotected parts of a metal surface to create a design in intaglio (incised) in the metal. In modern manufacturing, other chemicals may be used on other types of material

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