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PQWT-Geophysical equipment
PQ-227A Dam Leakage Detector/ Dam Seepage Detector
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PQWT-Geophysical equipment
PQWT G50/150/300 Dam Piping Leak Detector
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PQWT-Geophysical equipment
PQWT KD50/150/300 Cave Detection Equipment 50m/150m/300m Cavity Detector
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