金属 库存总量 注销仓单 注销占百分比 铜 152,550 23,750 15.57% 铝 4,620,175 2,590,825 56.08% 铅 225,275 4,800 2.13% 锌 751,400 172,050 22.90% 锡 8,595 585 6.81% 镍 356,040 82,968 23.30%