金属 库存总量 注销仓单 注销占百分比 铜 465,650 285,175 61.24% 铝 5,345,775 2,153,200 40.28% 铅 233,000 54,600 23.43% 锌 1,015,425 524,475 51.65% 锡 12,007 3,760 31.15% 镍 240,096 84,540 35.21%