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Self-rotating vibration intermittent jet cleaning head
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Piston device with two-way locking function
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Coiled tubing orientation tool
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Hydraulic sealing patch connector suitable for casing and oil pipe
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Ball-throwing type oil pipe blocking device
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Wellhead pressure testing device
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High-pressure rotating cleaning drilling and grinding device
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Multi-layer casing windowing mill shoe
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Underground clutch
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Torch energy cutter
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Unlimited circulation nipple joint
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Three-dimensional constant-stability device
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Multifunctional hydraulic safety device for oil pipe
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Novel electric power downhole tool cutterbar
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Deflector rod reversing valve torsion impactor
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