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Triple rigid balance suspension
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Chassis cab turnover mechanism of oil field special vehicle
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Frame device of special chassis for non-guy rope workover rig
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Superheavy rigid balance suspension device
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Universal support for automobile engine
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Novel frame side rail guard
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Steering system device for special vehicle chassis
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Cooling driving device mounted on special vehicle chassis
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Trailer frame of drilling derrick
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A kind of workover rig special-purpose vehicle powershift mechanism
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A kind of oil field chassis throttle control system
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A kind of engine and connection device of automatic gear box
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A kind of expansion of oil-field special vehicle platen and adjustment device
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A kind of oil field flushing machine chassis structure
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A kind of double torsion bar two-man act arm sling frame spring arm initial position determining devices
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A kind of erection support of petroleum well servicing rig driver's cabin
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A kind of one drag two on-board air conditioner circuit
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A kind of multi-layer flexible pipe transfer car(buggy)
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water tank trailer capable of being rapidly transported
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Engine SCR aftertreatment system for petroleum well servicing rig
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