金属 库存总量 注销仓单 注销占百分比 铜 314,250 69,625 22,16% 铝 3,616,100 1,621,625 44.84% 锌 464,425 80,300 17.29% 镍 458,688 144,504 31.50% 锡 6,670 1,120 16.79% 铅 171,400 16,950 9.89% 铝合金 14,820 1,460 9.85%