金属 库存总量 注销仓单 注销占百分比 铜 193,475 34,150 17.65% 铝 1,103,325 223,525 20.26% 锌 197,875 33,525 16.94% 镍 375,564 129,480 34,48% 锡 2,320 310 13.36% 铅 145,550 50,775 34.88% 铝合金 13,000 0 0.0%