金属 库存总量 注销仓单 注销占百分比 铜 269,750 122,350 45.36% 铝 5,391,425 2,562,700 47.53% 铅 200,625 30,575 15.24% 锌 774,000 146,425 18.92% 锡 9,360 2,115 22.60% 镍 285,210 139,836 49.03%