金属 库存总量 注销仓单 注销占百分比 铜 201,650 31,375 15.56% 铝 1,106,025 213,275 19.28% 锌 188,225 23,875 12.68% 镍 373,410 121,758 32,61% 锡 2,450 375 15.31% 铅 141,875 42,925 30.26% 铝合金 13,500 0 0.0%