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- discarded baths Ag, Au, Pt, Rh, Pd and Ru
- galvanic sludges
- precipitated precious metals in hydroxidic as well as metallic form
- saturated filtration materials, sorbents, activated carbon, filtration inserts
- saturated ionex resins
- metal-plated galvanizing fixtures
- binding wires, rejects from galvanization
- Ag anode residues
- platinum level sensors and probes
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