Geophysical Equipment, Underground Water Detector, Well Logging manufacturer / supplier in China, offering 100m 300m 500m Hydraulic Geotechnical Drill Machine Hydraulic Rope Core Drill Rig Diesel Hydraulic Power Drill Rig with Nq, Hq, Pq Drill Tool, 2000m Wireless Bluetooth Communication Remote Control Non-Magnetic Rock Borehole Inclinometer, Digital Inclination Transmitters Underground Path Mapping Systems Wireless Drilling Data Loggers and so on.