一、国际市场行情回顾由于铜的用途日益广泛，自９０年代初以来，铜资源消耗一直保持稳定上升趋势，消费需求平稳增长。这主要体现在两个方面，一是民用建筑，办公楼宇、工厂厂房等技术设施对铜的需求量大大增加；二是电子通讯、计算机等领域的发展，扩展了对铜的需求。铜... I. Review of International Market As the use of copper is becoming more and more widespread, since the early 1990s, the consumption of copper resources has been on a steady upward trend with steady growth of consumer demand. This is mainly reflected in two aspects. First, the demand for copper from technical buildings such as civil buildings, office buildings and factory buildings has greatly increased. Second, the development of electronic communications and computers has expanded the demand for copper. copper...