金属 库存总量 注销仓单 注销占百分比 铜 156,000 31,000 19.87% 铝 5,060,425 3,032,875 59.93% 铅 191,900 11,625 6.06% 锌 667,700 54,400 8.15% 锡 11,185 2,490 22.26% 镍 305,556 112,698 36.88%