Shandong Gold Mine, with a cross-section of 4.3×4.3 meters, uses a bolting rig equipped with the independently developed WOSERLD W14B/D hydraulic rock drill. The drill rod length is 2.475 meters, and the average time per hole is 45 seconds.
Shandong Gold Mine, with a cross-section of 4.3×4.3 meters, uses a bolting rig equipped with the independently developed WOSERLD W14B/D hydraulic rock drill. The drill rod length is 2.475 meters, and the average time per hole is 45 seconds.