金属 库存总量 注销仓单 注销占百分比 铜 382,550 253,075 66.15% 铝 5,468,400 2,346,775 42.92% 铅 216,950 34,650 15.97% 锌 894,825 470,900 52.62% 锡 10,235 4,150 40.55% 镍 255,744 106,182 41.52%