金属 库存总量 注销仓单 注销占百分比 铜 211,775 52,350 24.72% 铝 1,088,425 249,200 22.90% 锌 179,950 81,550 45.32% 镍 363,168 104,124 28.67% 锡 1,960 650 33.16% 铅 138,800 53,800 38.76% 铝合金 14,420 960 6.6668%