Dandong Iron Mine, with a cross-section of 4.5×5 meters, uses a tunneling drill rig equipped with the WOSERLD hydraulic rock drill. The hole depth is 3.4 meters, with an average drilling time of 2 minutes per hole.
Dandong Iron Mine, with a cross-section of 4.5×5 meters, uses a tunneling drill rig equipped with the WOSERLD hydraulic rock drill. The hole depth is 3.4 meters, with an average drilling time of 2 minutes per hole.