Geophysical Equipment, Underground Water Detector, Well Logging manufacturer / supplier in China, offering Seismic Impact Hammer Seismic Impulse Source Seismic Impact Source for Land Deep Seismic Job, Existing Bridges Building Parallel Seismic Piles Testing Instrument PS Detector Determine Foundation Length, Geotechnical Ultrasonic Borehole Monitor Drilling Monitor Drilled Shafts Trenches Integrity Tester Measure Hole Depth Diameter Inclination and so on.