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Endoscope for pipeline inspection based on photoresistor
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Endoscope probe for bent pipe detection
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Force bearing and piecing device for ultraphonic detector
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Curve crawl device
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Pipeline crawler with auxiliary lighting apparatus
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Pipeline crawler equipped with focusing mechanism
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Pipeline crawler provided with rotating lens
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Four-way snake bone and assembling method thereof
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Sliding type self-compensation reducing guide device
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Multiple crawler control method and system thereof
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Device with replaceable endoscope lens
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Four-way snake bone with camera tube and assembling method thereof
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Manual variable-diameter supporting frame of pipeline endoscope
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Nuclear power detection mirror with fishing pliers
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Pipe cleaning anchor hook
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Connection transferring device of endoscope guider
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Natural gas well detection grounding prevention control system
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Big pipe endoscope
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Radius-variable guiding device
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Rotatable gas well detection lens device
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