金属 库存总量 注销仓单 注销占百分比 铜 329,975 135,025 40.93% 铝 1,489,325 525,025 35.25% 锌 339,150 170,150 50.17% 镍 378,414 112,734 29.79% 锡 2,030 340 16,75% 铅 183,525 68,625 37.39% 铝合金 13,960 1,640 11.75%