金属 库存总量 注销仓单 注销占百分比 铜 204,125 46,775 22.91% 铝 1,086,875 250,500 23.05% 锌 180,150 53,475 29.68% 镍 365,994 106,722 29.16% 锡 2,115 665 31.44% 铅 142,075 44,800 31.53% 铝合金 14,580 1060 7.27%