金属 库存总量 注销仓单 注销占百分比 铜 190,750 46,000 24.12% 铝 2,751,100 619,625 22.52% 锌 471,525 72,575 15.39% 镍 440,502 157,890 35.84% 锡 3,675 365 9.93% 铅 211,475 98,925 46.78% 铝合金 16,100 20 0.12%