Серебро+припой (эксперемент)))))
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АФФИНАЖ СТАБИЛИТРОНОВ
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Smelting Silver Ore & Refining
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Making Something Stinkier Than Thioacetone: Selenoacetone, Selenols, and My Experience With Selenium
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АФФИНАЖ СЕРЕБРА 80% ИЗ КОНТАКТОВ НА МЕДИ.
19:08
He Swore To KILL Naoya Inoue.. What Happens Next Is EPIC!
4:30
Silver bromide
8:41
Pure silver recovering from old jewelry
6:38