... well, geothermal well, geotechnical enhineering, SPT..... Specifications------Water well rotary drilling rig: Drilling depth 100/250/300/600 mDrilling DI 300/200/150 ... floodgate belt width 90 mmAdvantages------ Water well rotary drilling rig:The water well rotary drilling rig rigs manufactured by Dingli Mine Equipment Co., Ltd ...