Easy DIY Gold & Silver Refining Process At Home, No Acids. Remove Base Metals By Cupelling MBMM
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YouTubembmmllc
Easy DIY Gold & Silver Refining Process At Home, No Acids. Remove Base Metals By Cupelling MBMM
Gold & silver refining using the cupelling process for removing base metals (copper, lead, iron, antimony, zinc, etc) from our smelted gold buttons. This process works on silver as well as platinum, palladium, and other precious metals, too. This is an ancient process that has been used since the bronze age for removing base metals from ...
460.3K viewsJan 14, 2020
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