金属 库存总量 注销仓单 注销占百分比 铜 356,125 231,475 65.00% 铝 5,455,400 2,359,550 43.25% 铅 215,000 31,150 14.49% 锌 922,850 419,650 45.47% 锡 9,655 3,185 32.99% 镍 260,862 98,436 37.73%