Hubei phosphate mine, section 5×4 meters, uses a bolting jumbo equipped with a WOSERLD rock drill. The hole depth is 2 meters, with an average drilling time of 1 minute.
Hubei phosphate mine, section 5×4 meters, uses a bolting jumbo equipped with a WOSERLD rock drill. The hole depth is 2 meters, with an average drilling time of 1 minute.
2023-08-15