金属 库存总量 注销仓单 注销占百分比 铜 295,475 34,175 11.57% 铝 3,972,475 2,251,550 56.68% 铅 213,475 11,775 5.52% 锌 590,675 193,375 32.74% 锡 11,405 2,045 17.93% 镍 426,114 101,238 23.76%