金属 库存总量 注销仓单 注销占百分比 铜 158,575 41,175 27.97% 铝 5,077,275 2,943,875 57.98% 铅 192,575 11,975 6.22% 锌 673,325 60,025 8.91% 锡 10,845 1,795 16.55% 镍 304,602 112,722 37.01%