金属 库存总量 注销仓单 注销占百分比 铜 338,125 85,950 25.42% 铝 3,828,325 1,816,875 47.46% 铅 179,100 82,000 45.78% 锌 474,100 140,600 29.66% 锡 9,175 885 9.65% 镍 443,670 115,788 26.1%