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How much non-ferrous metal is inside powerful water valves? I dismantle old, huge water valves (taps) found at a scrap metal dig for non-ferrous metal. I am interested in what content of brass is inside, overall the result was a pleasant surprise. Zen: https://dzen.ru/id/6150261508620a1b2e... VK: https://vk.com/metalheadclan