金属 库存总量 注销仓单 注销占百分比 铜 157,250 42,350 26.93% 铝 2,549,700 1,133,700 44.46% 锌 385,675 31,275 8.11% 镍 402,504 127,320 31.63% 锡 6,885 1,160 16.85% 铅 185,550 74,025 39.89% 铝合金 14,660 840 5.73%