... .2/72) Engine: ZS11153) Working Pressure: 0.7 Mpa4) Rotation Speed (r/min): 9705) Air Displacement (m3/min): 3.26) Discharge ... have own factory. And we can supply drilling rig, air compressor, rock drill, the drilling parts, loader, excavator and diesel engine, and ... core, belt and so on. for drilling rig, we can supply drill bit, drill rod, dth hammer, motor, joint etc, diesel engine parts ...