Geophysical Equipment, Underground Water Detector, Well Logging manufacturer / supplier in China, offering Gd20-S Constructional 3 Channels Micro Blasting Vibration Monitoring Vibrometer, Resistivity & Caliper Combined Probe Drilling Borehole Geophysical Logging Equipment, High Voltage Time Domain Induced Polarization IP Surveys Equipment Mapping Metallic Ore Deposits Medium Deep Range Prospecting System and so on.