Gold extraction with BORAX for small-scale miners - Rather Rich & Healthy than Poor & Poisoned
1.3 میلیون بار بازدید -
13 سال پیش
-
Learn how to make more
Learn how to make more gold with borax instead of mercury.
Description of a new environmentally beneign gold extraction method which will make use of mercury for gold extraction redundant.
Description of a new environmentally beneign gold extraction method which will make use of mercury for gold extraction redundant.
13 سال پیش
در تاریخ 1390/07/25 منتشر شده
است.
1,322,701
بـار بازدید شده