金属 库存总量 注销仓单 注销占百分比 铜 235,250 110,250 46.87% 铝 2,141,525 842,700 39.35% 锌 386,450 178,200 46.11% 镍 377,280 106,716 28.29% 锡 5,415 1,350 24.93% 铅 189,725 69,425 36.59% 铝合金 13,280 960 7.23%