金属 库存总量 注销仓单 注销占百分比 铜 252,600 115,525 45.73% 铝 5,355,925 2,903,050 54.20% 铅 202,400 30,175 14.91% 锌 824,325 178,425 21.64% 锡 9,420 2,050 21.76% 镍 281,598 135,060 47.96%