金属 库存总量 注销仓单 注销占百分比 铜 216,950 102,750 47.36% 铝 5,331,600 2,917,275 54.72% 铅 193,600 20,750 10.72% 锌 763,750 127,625 16.71% 锡 9,705 3,506 36.12% 镍 278,436 120,270 43.19%