金属 库存总量 注销仓单 注销占百分比 铜 160,925 43,350 26.97% 铝 2,862,925 705,450 24.65% 锌 449,000 57,425 12.79% 镍 434,838 131,658 30.28% 锡 4,305 340 7.90% 铅 166,250 59,625 35.86% 铝合金 16,500 20 0.12%