... , the drilling of industrial deep well, conventional water well and geothermal well, etc., and national defense fields, to name a few. It ... down-the-hole hammer drilling. 2. If equipped with air water separator, dual-wall drill pipe and other related devices, the ... 600ml/min/3Mpa 850ml/min/2Mpa Diesel engine BD226B-6ΙΙwater cooled, 4-stroke, intercooled supercharged diesel engine 132KWGenerating set MF ...