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CN108071360A
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Packer rubber assembly
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CN108060905A
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High temperature and pressure packer
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CN108071354A
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Torsion type universal joint
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CN108060900A
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Mechanical tubing anchor
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CN108060910A
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Circulating valve
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CN108019159A
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Mechanical back-off sub
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CN108019158A
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Fluid pressure type back-off sub
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CN108019186A
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Double flapper check valves
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CN108019187A
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Hydraulic sliding sleeve
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CN108019185A
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The setting bridge plug of waterpower
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CN108019181A
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mechanical-hydraulic packer
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CN108019161A
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Rolling wheel centralizer
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CN108005609A
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Cement retainer
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CN108005607A
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Hydraulic packer
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CN108019184A
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Bridge plug
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CN108019177A
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Crude oil anti-theft device
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CN108005608A
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Two-way mechanical hydraulic packer
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CN108019180A
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Bidirectional bearing packer
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CN108019174A
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Fishing tool
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CN108019183A
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Permanent base sealed packer
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