金属 库存总量 注销仓单 注销占百分比 铜 594,500 313,475 52.73% 铝 5,463,350 2,089,425 38.24% 铅 199,275 104,975 52.68% 锌 1,047,875 615,575 58.75% 锡 13,750 4,020 29.24% 镍 204,024 32,454 15.91%