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inorganic waste with metals from metal treatment and the coating of metals; non-ferrous hydro-metallurgy; wastes from chemical surface treatment and coating of metals and other materials | |||
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liquid wastes and sludges from metal treatment of coating of metals eg.galvanic processes,zinc coating processes,pickling processes,etching,phosphatizing,alkaline degreasing; wastes from chemical surface treatment and coating of metals and other materials for example galvanic processes, zinc coating processes, pickling processes, etching, phosphating, alkaline degreasing, anodising |