Chinese copper ore with an average grade of 0.87%, higher than the 1% of reserves, accounting for only 35% of the total reserves of resources, and an average grade of copper ore abroad and more than 1%. The average grade of Chinese porphyry copper was 0.5%, well below the level of 1% -2% of Chile and Peru; sandstone-type copper average grade of 0.5% to 1%, well below the Congo and Zambia 2 % -5%. Therefore, China can only rely on imports large amounts of copper concentrate and copper scrap and other raw materials to meet the needs of refined copper production, but sooner or later the country's copper reserves is to be exploitation. Aluminum has a series of advantages, but its biggest advantage could be recovered and strong, can be recycled again and again repeatedly. Recycled aluminum compared with primary aluminum production, had no effect on the performance of aluminum, loss of oxidative remelting complex, but also when the 2% to 3%, every recycling can save about 95% of energy, and reduce carbon dioxide emissions by a corresponding , which is building a low-carbon economy has great significance. In the United States published by the Aluminum Association "Aluminum Industry Overview", the aluminum called "Energy Savings Bank," which means that in the process of extracting aluminum consumed energy in the future use and recycling process, you can "draw out" to return to the community. Therefore, from the point of view of sustainable development, recycling aluminum construction industry has become a routine material "urban mining" is a recyclable material of energy saving, which has become increasingly urban mines The more real and genuine, but also a "forever inexhaustible," the mines. Georgia US Radiator: http: //www.gmsrq.com Tianjin radiator: http: //www.gmsrq.com/CN/ProductList.asp