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The video shows the process of recycling 1 set of connector - SR (socket + plug) not of a civilian type but from the USSR missile technology, the mass of the ligature is 41.6 grams. After removing excess metal, the gilding (gold) was dissolved in aqua regia (a mixture of hydrochloric acid 3:1 nitric acid) and restored with hydrazine hydrochloric acid from the solution.