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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Particularly suitable for the joining and overlay welding of copper nickel such as machinery, desalting of seawater, ship-building, oil refinery, and food processing industries.

适用于铜镍合金的焊接和堆焊。如化工设备、海水淡化、海洋结构、造船、石油精炼、食品工业以及耐蚀装置和容器等。

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But a 20-30% discount on the copper value is reasonable enough thus making, at the refinery gate, a 1 rupee coin worth perhaps 2 cents or two rupees.

FORBES: The Pakistani 1 Rupee Coin Is Worth More Than 1 Rs