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Automatic overturning and dumping system for ton barrel
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Automatic platform of empting that overturns of ton bucket
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Turnover vibration platform and coupling thereof
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Rotary drilling rig and counterweight device thereof
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Rotary drilling rig and guide pulley frame thereof
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Mast device and drilling machine
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Novel double-locknut
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Rotary drilling rig
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Dangerous waste material dumping system
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Auxiliary platform and contact net overhaul operation vehicle
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Folding platform and contact net overhaul operation car
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Construction vehicle and chassis thereof
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Main valve turning device
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Portable show stand
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