金属 库存总量 注销仓单 注销占百分比 铜 232,200 19,850 8.55% 铝 2,930,175 1,219,600 41.62% 锌 508,075 91,700 18.05% 镍 409,014 166,578 40.73% 锡 5,805 1,100 18.95% 铅 131,175 28,400 21.65% 铝合金 13,460 20 0.15%