金属 库存总量 注销仓单 注销占百分比 铜 160,900 42,900 26.66% 铝 2,605,500 1,081,325 41.50% 锌 393,475 28,475 7.24% 镍 414,714 133,374 32.16% 锡 6,050 800 13.22% 铅 175,350 76,675 43.73% 铝合金 15,980 1,420 8.89%