金属 库存总量 注销仓单 注销占百分比 铜 618,775 316,500 51.15% 铝 5,476,175 2,115,000 38.62% 铅 198,350 107,550 54.22% 锌 1,055,125 627,675 59.49% 锡 14,545 4,995 34.34% 镍 200,280 28,542 14.25%