... ; They are used for core sample, water well, geothermal well, SPT..... Deep well drilling machine project case: This model is popular ... Strong structure and scientific design enable them to drill water well deep and with large diameter4) Durable parts, long service ... rod, bit, core barrel, rope, and so on. Deep well drilling machine technical parameters: ModelDLX-130YDLX-180YDLX-200YDLX-3YDLX-3Drilling ...