金属 库存总量 注销仓单 注销占百分比 铜 389,175 258,350 66.38% 铝 5,392,350 2,331,050 43.23% 铅 221,175 38,875 17.58% 锌 913,925 492,000 53.83% 锡 10,315 3,150 30.54% 镍 255,354 107,442 42.08%