金属 库存总量 注销仓单 注销占百分比 铜 163,700 46,300 28.28% 铝 5,127,100 2,820,525 55.01% 铅 191,250 15,500 8.10% 锌 684,625 65,275 9.53% 锡 10,900 2,815 25.83% 镍 286,710 114,270 39.86%