从叉簧到坟墓：西部电气与纳苏冶炼的兴衰史
本文追溯了AT&T如何通过收购西部电气实现垂直整合，以及西部电气子公司纳苏冶炼与精炼公司如何成为贝尔系统金属回收的核心。从1872年西部电气的创立，到纳苏冶炼在斯塔滕岛的运营——这座"地上矿山"每年处理数千吨废旧电话设备和电缆，回收铜、铅等金属回馈贝尔系统。文章还揭示了纳苏冶炼在两次世界大战中的关键作用、环境污染争议，以及1970年代环保运动与AT&T衰落如何共同终结了这一庞大的内部回收体系。
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