Geophysical Equipment, Underground Water Detector, Well Logging manufacturer / supplier in China, offering Geological Structures Resistivity Survey Tool Subsurface Imaging Device Karst Cavity Detection System Multi Electrodes Resistivity System, Wireless Seismic Nodes 3c Geophone System Low Noise Seismograph, Wireless Seismic Sensor 3c Seismic Node Broadband Seismometer and so on.