金属 库存总量 注销仓单 注销占百分比 铜 572,525 297,700 52.00% 铝 5,447,425 2,049,550 37.62% 铅 186,025 92,050 49.48% 锌 1,032,175 600,550 58.18% 锡 13,935 4,245 30.46% 镍 208,578 39,018 18.71%