The electrolytic copper refinery in Huelva, Spain began operations in 1970, and since 1995, has operated using ISA permanent cathode technology.
西班牙韦尔瓦精炼厂1970年开始生产，1995年采用了艾萨永久阴极铜技术。
The electrolytic copper refinery in Huelva, Spain began operations in 1970, and since 1995, has operated using ISA permanent cathode technology.
西班牙韦尔瓦精炼厂1970年开始生产，1995年采用了艾萨永久阴极铜技术。
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