Refining of gold-containing lamellas, connectors and other ligatures using the Chinese reagent JIN CHAN (Golden Cicada)
- 3 ай бұрын
Refining of lamellas, connectors and other ligatures using the Chinese reagent JIN CHAN
- Рет қаралды 7,267
Refining of gold-containing lamellas, connectors and other ligatures using the Chinese reagent JIN CHAN (Golden Cicada)
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