First locally-made automated shaft sinking drill rig shipped to overseas client
Shaft sinking from 1970 to 2007: Mechanical excavation
Shaft sinking from 1970 to 2007: Mechanical excavation
Sinking a mine shaft with the 6 Boom Jumbo drill rig. | Behance
Pneumatic Shaft Jumbos | Rock Drill Manufacturer | Huatai
Shaft sinking from 1970 to 2007: Mechanical excavation
Excavation cycle times recorded during sinking of a deep shaft in crystalline rock – A case example at Ventilation Shaft of Mizunami URL, Japan - ScienceDirect
Shaft Drilling Jumbo (SDJ) - Herrenknecht AG
Shaft Drilling Jumbo (SDJ) - Herrenknecht AG
jumbo drill rigs Archives - International Mining
Vertical Shaft Drill, vertical shaft drill, umbralla drill, shaft drill rigs - China (mainland) vertical shaft drill, umbralla drill, Shaft-Sinking Drilling Rig in Mining Machines on ttnet.net
Joy Shaft Jumbo Drill - Underground Hard Rock Mining - United Kingdom | Komatsu Mining Corp. - raybet投注
Shaft Drilling Jumbo (SDJ) - Herrenknecht AG
Shaft Drilling Jumbo (SDJ) - Herrenknecht AG
Shaft sinking team at Palabora copper mine reach 800 m