金属 库存总量 注销仓单 注销占百分比 铜 269,000 134,450 49.98% 铝 5,293,200 2,498,925 47.21% 铅 203,975 32,900 16.13% 锌 776,000 166,450 21.45% 锡 9,105 2,140 23.50% 镍 269,370 126,738 47.05%