金属 库存总量 注销仓单 注销占百分比 铜 289,075 56,575 19.57% 铝 3,106,525 925,400 29.79% 锌 583,275 46,000 7.99% 镍 434,994 487,632 43.13% 锡 4,585 650 14.18% 铅 149,575 31,325 20.94% 铝合金 12,280 80 0.65%