金属 库存总量 注销仓单 注销占比 铜 321,125 44,050 13.72% 铝 1,306,400 248,050 18.99% 锌 200,000 21,450 10.73% 镍 326,790 124,536 38.11% 锡 1,665 230 13.81% 铅 131,400 31,375 23.88% 铝合金 12,760 300 2.35%