金属 库存总量 注销仓单 注销占百分比 铜 547,550 266,475 48.67% 铝 5,401,000 1,913,200 35.42% 铅 243,500 65,900 27.06% 锌 975,100 597,900 61.32% 锡 13,625 2,585 18.97% 镍 225,426 45,990 20.40%