金属 库存总量 注销仓单 注销占百分比 铜 162,675 36,475 22.42% 铝 4,427,975 2,616,500 59.09% 铅 224,475 14,000 6.24% 锌 705,525 134,675 19.09% 锡 9,115 630 6.91% 镍 380,946 86,142 22.61%