Geophysical Equipment, Underground Water Detector, Well Logging manufacturer / supplier in China, offering 500m Underground Electric Resistivity Mapping Water Minerals Exploration Transient Electromagnetics System, 0.1mm Resolution Borehole Camera 700tvl Borehole Camera Geotechnical Borehole Camera, Concrete Inspection Camera Waterproof Borehole Camera ATEX Borehole Camera and so on.