金属 库存总量 注销仓单 注销占百分比 铜 298,225 116,300 39.00% 铝 1,331,175 288,450 21.67% 锌 264,000 108,350 41.04% 镍 373,086 126,245 33.84% 锡 2,030 560 27.59% 铅 151,000 64,375 42.63% 铝合金 12,420 300 2.42%