金属 库存总量 注销仓单 注销占百分比 铜 289,600 168,875 58.66% 铝 5,353,425 2,471,900 46.17% 铅 201,275 33,575 16.68% 锌 788,875 211,050 26.75% 锡 8,430 3,705 43.95% 镍 269,214 118,914 44.17%