金属 库存总量 注销仓单 注销占百分比 铜 386,550 255,725 66.16% 铝 5,415,050 2,371,700 43.80% 铅 220,150 37,850 17.19% 锌 909,400 487,475 53.60% 锡 10,315 3,070 29.76% 镍 255,552 106,344 41.61%