红二煤矿项目矿权面积22.483km2,设计资源储量为231.10Mt?缶杓粕芰ξ2.4Mt/a,效劳年限51a?缶幽芍髁⒕⒏绷⒕突胤缌⒕胤椒;主立井深550米,井筒直径5.5米;副立井深715米,井筒直径8米;回风立井深714米,井筒直径6米。井田结构庞洪水平为简朴,...
09-08 / 2020