1, Working Pressure: 7 Bar 2, Volume Flow: 3.2 m3/min 3, Diesel Air Compressor 4, Use For Mining, Road, Coal etc 5 ... filter, oil core, belt and so on. for drilling rig, we can supply drill bit, drill rod, dth hammer, motor, joint etc ... be supplied, good quality, the standard drilling rig in China. It is No.1.Our drilling rig has hundreds of patents. 3), Training ...