Center distance 1.75m, support strength 0.8~0.83MPa; suitable for filling mining with coal seam thickness of 2.4~3.6m; adopts gob-side entry retaining mining process along the filling, equipped with high-efficiency new compaction mechanism.
Center distance 1.75m, support strength 0.8~0.83MPa; suitable for filling mining with coal seam thickness of 2.4~3.6m; adopts gob-side entry retaining mining process along the filling, equipped with high-efficiency new compaction mechanism.