equipamento de perfuração subterrânea
What is a Diesel Air Compressor?
Innovations in Roof Covering
Key Parameters for Calculation
2. Rock drill: used to drill holes with a diameter of 20 ~ 100 mm and a depth of less than 20 meters in rocks above medium and hard. According to its different power can be divided into pneumatic, internal combustion, hydraulic and electric rock drill, of which pneumatic rock drill is the most widely used.
Advanced Technology
Advanced Technology
Submarine Hammer Drilling An Insight into Techniques and Applications
Mining Industry
Mining Industry