ВЫТЯГИВАЕМ ЗОЛОТО ИЗ СОВЕТСКИХ МИКРОСХЕМ И ОПТОПАР!
unavailable
16+

Francois Pellier

Add to favorites
Added
Full HD
12 minutes
The video blog focuses on the chemistry of various precious metals and much more. Under different headings, you can watch videos on how the author purifies and determines samples of initial contacts in order to extract silver 920. He also tells how to determine gold in quartz-pyrite gold-bearing ores, create the legendary red gold 585, and more.

Translation

Russian