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My channel in telegram: https://t.me/mihailvvedenskiy, @vveda1950 To contact me, use ONE of my emails: [email protected], [email protected] Please indicate your contact phone number in your correspondence. I ASK YOU TO PROVIDE AS MUCH ASSISTANCE TO MY CHANNEL IN PROMOTING OUR PROJECTS, FOR THE COMMON GOOD: Sberbank - 5469.9802.7549.0197 recipient: Viktor Konstantinovich V. Chemical current sources: we invite manufacturers of these devices to cooperate. https://cloud.mail.ru/attaches/169389...