Rock Drill, Drill Bit, Drill Rod manufacturer / supplier in China, offering Kt15c Integrated Surface DTH Drill Rig High Strength Aluminum Alloy Propulsion Beam, Kt15c DTH Drill Rig 140-190 mm Drilling Diameter 4′′/5′′/6′′ DTH Hammer, Kt15c Integrated Surface Down The Hole Drill Rig Open-Pit Mine Construction and so on.