金属 库存总量 注销仓单 注销占百分比 铜 159,025 42,525 26.74% 铝 2,617,550 1,071,750 40.94% 锌 395,175 30,525 7.72% 镍 415,284 134,040 32.28% 锡 5,950 635 10.67% 铅 174,025 77,440 44.48% 铝合金 16,720 2,160 12.92%