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In this movie I am finalizing the recently shown method of refining. Its meaning is in mechanical grinding of microcircuits and chips with further application of acid refining. I managed to check a lot of advice of subscribers in this video. Which ones turned out to be suitable and which ones are not you will find out after watching this video. My channel in Zen - https://zen.yandex.ru/id/625d802847ea... My mail - [email protected]