SILVER contacts de-soldering new method

18:13
Silver Recovery from Silver Contacts

16:20
Comment fabriquer une machine à souder simple à partir de bougies d'allumage à la maison !

10:29
Silver Recovery from Relay Contacts

20:30
Or provenant de puces BGA de 117 grammes

27:35
Silver Contacts Recovery & Refine Complete Process (long video, but worth the watch)

16:34
25g SILVER from contactor NC2-185

34:22
3 façons de raffiner l'or jusqu'à une pureté ultra élevée

11:08