razvanflorin
Well-known member
Hello everybody ! I Would need some help..
i have 25 kg of this kind of pins ( INGUN PROBE PINS )
Those pins are gold plated inside & outside, and inside them is an iron spring that is gold plated too.
the problem is that i want to refine them in Cyanide and the cyanide didn't enter inside them, i tryed to put them inside and Ultrasonic Cleaner but is not working.. if anyone have any idea please tell me !
Thanks !
i have 25 kg of this kind of pins ( INGUN PROBE PINS )
Those pins are gold plated inside & outside, and inside them is an iron spring that is gold plated too.
the problem is that i want to refine them in Cyanide and the cyanide didn't enter inside them, i tryed to put them inside and Ultrasonic Cleaner but is not working.. if anyone have any idea please tell me !
Thanks !