However, it is mostly extracted from lead-zinc, copper, gold and copper-nickel ores as being a by-solution of mining for these metals. The steel is recovered both with the ore, or in the electrolytic refining of copper. World manufacturing is about 20,000 tonnes annually. Support textual content not accessible for this https://silber-verkaufen19753.ktwiki.com/874509/silber_verkaufen_options