金属 库存总量 注销仓单 注销占百分比 铜 157,700 40,600 25.75% 铝 4,957,950 2,921,625 58.93% 铅 213,725 11,375 5.32% 锌 657,075 72,575 11.05% 锡 11,885 2,080 17.50% 镍 311,088 103,164 33.16%