金属 库存总量 注销仓单 注销占百分比 铜 589,725 314,250 53.29% 铝 5,458,550 2,080,375 38.11% 铅 197,675 103,375 52.30% 锌 1,045,125 607,375 58.12% 锡 14,205 4,390 30.90% 镍 205,890 33,030 16.04%