金属 库存总量 注销仓单 注销占百分比 铜 304,000 64,000 21.05% 铝 1,075,050 231,275 21.51% 锌 167,450 69,100 41.27% 镍 350,652 99,768 28.45% 锡 1,800 645 35.83% 铅 131,125 53,600 40.88% 铝合金 13,480 320 2.37%