人们可以自豪地描绘出20世纪美国铝的再生利用的发展踪迹。从很低的起点开始,铝的再生利用工业已经回收利用了几千万吨废铝。仅1986年一年,_以各种废泪物资中回收了80万公吨铝,约 People can proudly portray the development of aluminum recycling in the United States in the 20th century. From a very low starting point, the aluminum recycling industry has reused tens of millions of tons of scrap aluminum. In 1986 alone, 800,000 metric tons of aluminum were recovered from various waste materials