Qinghai Gold Mine, with a section of 4×3.3 meters, uses a rock drilling rig equipped with the WOSERLD hydraulic rock drill on a drilling rig. The drill rods are 4.3 meters long, and the average time per hole is 1 minute and 50 seconds.
Qinghai Gold Mine, with a section of 4×3.3 meters, uses a rock drilling rig equipped with the WOSERLD hydraulic rock drill on a drilling rig. The drill rods are 4.3 meters long, and the average time per hole is 1 minute and 50 seconds.