On the junkyard I bought several pieces of brass with big silver contacts. After testing I found that the contacts were 925 clean and so I solved them just melting them and selling them. In addition to the proper melting step, it is possible to remove extra tin and dirt and leave only 925 silver for sale.
- Күн бұрын
SILVER RECOVERY FROM CONTACTS - no acid !
- Рет қаралды 64,085
Пікірлер: 78