金属 库存总量 注销仓单 注销占百分比 铜 577,675 280,050 48.48% 铝 5,407,050 2,011,275 37.20% 铅 186,200 81,250 43.64% 锌 1,010,400 608,575 60.23% 锡 15,290 4,490 29.37% 镍 212,220 38,706 18.24%