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铜,是大家比较熟悉的金属,也是人类发现最早的金属之一,如地道的老北京涮羊肉用的就是铜锅.铜脸盆、铜锁、铜炉等都是老百姓生活中常用的。但是近些年来,这些铜制品也难以见到了,一个很大原因就是中国是一个缺铜的国家。我国每年需要大约130万吨铜,其中50万吨需要从国外进口,也就是说五分之二靠进口。而从国际上看,全球铜资源保证年限也不过几十年。
Copper is one of the most familiar metals in the world, and one of the earliest metals discovered by mankind, such as the copper pot used in authentic old Beijing mutton boiled lambs.The copper washbasins, brass locks and copper stoves are commonly used by ordinary people. However, in recent years, these copper products are hard to see, a big reason is that China is a copper-deficient country. China needs about 1.3 million tons of copper annually, of which 500,000 tons need to be imported from abroad, that is to say, two-fifths of imports depend on imports. From the international point of view, the global guarantee of copper resources, but also decades.