金属 库存总量 注销仓单 注销占百分比 铜 336,725 99,600 29.58% 铝 1,564,800 596,325 38.11% 锌 347,200 155,125 44.68% 镍 381,834 106,554 27.91% 锡 2,290 480 20.96% 铅 178,325 93,475 52.42% 铝合金 14,880 2,560 17.20%