300m Drilling truck mounted Mud pump/ 25 bar air compressor water well drilling truck Hebei Wanjie Machinery Technology Co., Ltd. Base Info Description 0-80rpm Pre：Hf-4 700m-1050m Full Hydraulic Power Core Rotary Drilling Rig Machine Next：1800mm Piling Diameter Rotary Piling Drilling Rig for Building Construction/Engineering Construction Foundation/City Viaduct Pile
