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A kind of horizontal directional drilling machine vice sequential-controlled hydraulic system
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A kind of development machine alignment system
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Horizontal directional drilling machine diaphragm type mud pressure transfer device
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Drilling rod lifting force and stressed mechanism and method of testing in test rotation
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Turn over formula positioner in ground
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A kind of tunnel descaling machine
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A kind of dual-purpose type push pipe head
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A kind of horizontal directional drilling machine list oil cylinder vice clamping structure
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A kind of reductor zero load running test device
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A kind of milling wheel toothholder positioner
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Multifunctional remote control blowout rescue vehicle
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A kind of tunnel dust removal machine Telescopic air duct
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A kind of tunnel dust removal machine
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Out-machine bypass structure for slurry balance pipe jacking machine
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It is a kind of can two-way fast assembling-disassembling pin shaft structure
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Transmission box of double-wheel slot milling machine
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Isolation type transmission box of double-wheel slot milling machine
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A kind of built-out waterway device for development machine
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