金属 库存总量 注销仓单 注销占百分比 铜 462,875 279,875 60.46% 铝 5,336,450 2,143,925 40.18% 铅 233,000 54,600 23.43% 锌 1,012,575 520,875 51.44% 锡 12,120 3,885 32.02% 镍 239,994 87,762 36.57%