Последние добавленные видео:
Melting-and-refining
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6 years ago
3676170 6 years ago 7:42How Pure Gold Is Refined
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3 years ago
74020 3 years ago 3:48Refining 25 Ounce Pure Gold Bar In My Garage
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3 years ago
325387 3 years ago 9:14Inside America's Super Smelter
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1 year ago
1760183 1 year ago 12:59Turning Old Jewelry into a Pure Gold Bar 10oz 24K
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3 years ago
198020 3 years ago 14:42Refining & Recovering Gold From Rings and Jewelry
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3 years ago
214840 3 years ago 27:14Smelting and Refining Gold From Tailings
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9 months ago
7083729 9 months ago 19:02Melting 50 Million Tons of Iron Ore! Process of Making High Quality Wire Rods in Korea
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1 year ago
61264 1 year ago 2:49How To Use BORAX To Remove Impurities from your Silver or Gold When Melting & Pouring
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3 years ago
21458 3 years ago 4:31Alaska Placer Gold Refining Short Version
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5 years ago
56672 5 years ago 23:58Entire Process of Melting Down Silver Coins, Refining, and Testing to 0.999 Purity
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3 years ago
110982 3 years ago 13:09Refining 14k Gold Jewelry Scrap To Precious Metals
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1 year ago
81487 1 year ago 9:18Collaborative Gold Smelting: Assessing Dan Hurd's Gold Ore!
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2 years ago
218419 2 years ago 13:22Gold Refining
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2 years ago
131666 2 years ago 30:41Mastering Gold Smelting: Techniques for Extracting Precious Metals from Sulfides