金属 库存总量 注销仓单 注销占百分比 铜 205,350 50,525 24.60% 铝 2,256,400 943,375 41.81% 锌 429,275 21,450 5.00% 镍 371,154 114,234 30.78% 锡 5,060 1,410 27,87% 铅 188,100 69,600 37.00% 铝合金 11,410 20 0.18%