Increase and revision of non-ferrous metals. I mine bronze, brass. I sorted out everything that was found during the season of metal digging with a metal detector and inspection of rural dumps. Weighed the entire accumulated volume.
Zen: https://dzen.ru/id/6150261508620a1b2e...
To contact me: https://vk.com/id643534949
Donate: Sber 5469390012970982