金属 库存总量 注销仓单 注销占百分比 铜 193,475 47,700 24.65% 铝 2,755,600 617,600 22.41% 锌 475,100 76,100 16.03% 镍 439,932 162,444 36.92% 锡 3,655 355 9.71% 铅 211,475 98,925 46.78% 铝合金 16,100 20 0.12%