金属 库存总量 注销仓单 注销占百分比 铜 622,950 316,625 50.83% 铝 5,464,025 2,129,175 38.97% 铅 198,500 107,800 54.31% 锌 1,055,350 635,550 60.22% 锡 14,390 4,980 34.61% 镍 200,010 29,826 14.91%