金属 库存总量 注销仓单 注销占百分比 铜 267,475 97,750 36.55% 铝 1,713,250 610,700 35.65% 锌 357,525 174,425 48.79% 镍 374,952 93,024 24.81% 锡 3,195 340 10.64% 铅 168,175 89,250 53.07% 铝合金 14,080 340 2.41%