金属 库存总量 注销仓单 注销占百分比 铜 300,675 175,000 58.20% 铝 5,382,000 2,478,225 46.05% 铅 204,425 33,000 16.14% 锌 807,525 225,175 27.88% 锡 8,840 4,035 45.64% 镍 269,256 112,116 41.64%