Geophysical Equipment, Underground Water Detector, Well Logging manufacturer / supplier in China, offering 3D Borehole Optical Televiewer and Borehole Scanner with 3D Geology Structure Report up to 1000m, 500m Borehole Winch 1000m Logging Winch, Borehole Televiewer Logging Equipment 300m, 500m Hi-Optv High Resolution Optical Televiewer for Geotechnical Construction and so on.