Rare is mainly used in the manufacture of special steels, super-hard alloy and high-temperature alloys, in terms of the electrical industry, chemical industry, ceramic industry, nuclear industry and rocket technology. Rare's name has a certain relative, found that people with extensive research on rare tin recycling projects, new sources and new refining production methods and to expand their range of applications, the boundaries metals and other metals will gradually disappear, If the rare metal content in the crust even more than copper, mercury, cadmium and other metals. Copper is a chemical element, its chemical symbol is Cu (Latin: Cuprum), its atomic number is 29, is a transition metal. Copper is one of the earliest humans discovered metal, also the first widely used metal mankind. Copper and its alloys are better corrosion resistance tin recycling works, but also because there are glossy, easy processing, so it is used to manufacture currency. Copper is also used in the manufacture of weapons, utensils, and cable. In humid air, the surface of copper will generate a green patina (the main component of basic copper carbonate Cu;. (OH) .; CO;). Tin recycling project | tin recovery | East in mind renewable resources by Dongguan Chang Ping Tung Kee renewable resource recycling offer. Dongguan Chang Ping Tung Kee renewable resource recycling (www.dongji8.com) strong, credible, in Dongguan, Guangdong scrap recycling industry has accumulated a large number of loyal customers. The company better work attitude and constantly improve the innovation will lead the East in mind the concept of renewable resources into the brilliant and you work for a better future!