Geophysical Equipment, Underground Water Detector, Well Logging manufacturer / supplier in China, offering Gd-E1000 2000 Meters Under Water Sedimentation Mapping Echo Sounder, Tri-Axis Accelerometer Tool Downhole Azimuth Sensor O-Ring Sealed Probe, Wireless Drilling Inclinometer Android Borehole Survey Kit 2000m Depth Survey Tool and so on.