46:04
Gold From Gold Corner BGA IC Chips Redo part 1
27:29
Is 14.3kg of E-Waste Worth Refining for Gold?
50:47
Gold From Hard To Process BGA IC Chips #gold #silver #experiment #ewaste #chemistry #preciousmetals
24:25
Refining gold filled jewelry. Also finally achieved 4 nines fine 99.99% XRF scan!
48:35