金属 库存总量 注销仓单 注销占百分比 铜 274,350 149,250 54.40% 铝 5,317,400 2,489,400 46.81% 铅 202,425 33,575 16.59% 锌 765,850 199,225 26.01% 锡 8,415 3,700 43.97% 镍 270,696 124,086 45.84%