金属 库存总量 注销仓单 注销占百分比 铜 177,350 64,950 36.62% 铝 5,222,700 2,876,925 55.09% 铅 192,375 19,200 9.99% 锌 734,350 107,550 14.65% 锡 10,760 3,010 27.97% 镍 279,672 123,000 43.98%