金属 库存总量 注销仓单 注销占百分比 铜 151,375 46,475 30.70% 铝 2,821,375 877,975 31.12% 锌 438,475 66,875 15.26% 镍 432,672 126,834 29.31% 锡 4,415 550 12.46% 铅 158,400 51,650 32.61% 铝合金 16,880 20 0.12%