金属 库存总量 注销仓单 注销占百分比 铜 338,000 126,625 37.46% 铝 3,800,000 1,763,550 46.41% 锌 438,475 104,975 23.94% 镍 444,324 123,294 27.75% 锡 8,565 1315 15.35% 铅 162,775 49,000 30.1% 铝合金 22,000 6,620 30.09%