金属 库存总量 注销仓单 注销占百分比 铜 199,025 37,825 19.01% 铝 2,452,400 1,071,825 43.71% 锌 382,620 32,550 8.51% 镍 388,620 115,992 29.85% 锡 6,300 1,465 23.25% 铅 185,600 73,100 39.39% 铝合金 13,180 1,580 11.99%