金属 库存总量 注销仓单 注销占百分比 铜 418,750 269,150 64.27% 铝 5,465,575 2,174,225 39.78% 铅 229,952 47,500 20.66% 锌 955,575 526,150 55.06% 锡 10,600 2,325 21.93% 镍 252,975 99,174 39.20%