金属 库存总量 注销仓单 注销占百分比 铜 156,775 28,300 18.05% 铝 5,066,400 2,990,950 59.04% 铅 193,700 11,425 5.90% 锌 666,775 56,600 8.49% 锡 11,560 2,470 21.37% 镍 305,394 112,722 36.91%