金属 库存总量 注销仓单 注销占百分比 铜 330,425 48,950 14.81% 铝 3,917,625 2,143,800 54.72% 铅 212,500 19,250 9.06% 锌 542,850 140,250 25.84% 锡 10,605 1,085 10.23% 镍 432,480 119,346 27.6%