金属 库存总量 注销仓单 注销占百分比 铜 325,400 198,325 60.95% 铝 5,445,400 2,454,625 45.08% 铅 209,675 41,625 19.38% 锌 869,075 284,725 32.76% 锡 9,065 2,655 29.29% 镍 264,090 105,894 40.10%