Geophysical Equipment, Underground Water Detector, Well Logging manufacturer / supplier in China, offering 1500 Meters Hydralic Servo P Wave Excitation Seismic Reflection Refraction Survey Vibrator, Geophysical Prospecting Resistivity Meter Underground Resource Detection Tools 64 Channel Resistivity Instrument, Salinity Mapping Resistivity System Contamination Detection Equipment Hydrological Investigation Instruments and so on.