金属 库存总量 注销仓单 注销占百分比 铜 168,700 28,025 16.61% 铝 4,251,075 2,293,300 53.95% 铅 220,750 8,825 4.00% 锌 679,150 191,750 28.23% 锡 12,130 2,620 21.60% 镍 408,408 101,046 24.74%