金属 库存总量 注销仓单 注销占百分比 铜 222,550 50,450 22.67% 铝 2,362,950 994,525 42.09% 锌 441,750 15,600 3.53% 镍 377,628 112,488 29.79% 锡 6,050 1,395 23.06% 铅 184,750 71,450 38.67% 铝合金 11,900 300 2.52%