金属 库存总量 注销仓单 注销占百分比 铜 185,225 47,600 25.70% 铝 2,804,700 607,500 21.66% 锌 470,700 69,900 14.85% 镍 430,602 148,884 34.58% 锡 3,745 420 11.21% 铅 205,475 104,500 50.86% 铝合金 16,100 20 0.12%