How extract gold from PCB circuit board electronics

👉👉♻️💯 How extract gold from PCB electronicscir cuit board
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A printed circuit board contains metals such as copper, tin, silver, and lead along with minute quantities of gold. There are several methods that are used practically to extract gold from a printed circuit board. But before we can start the process we need to determine the amount of gold that the PCB contains.It can be done by a procedure which is known as “milling”.

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