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A kind of connection buffer unit and the railway freight-car with the connection buffer unit
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A kind of automobile-used side wall compositions of new SQ6
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A kind of articulated car for carrying crane
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A kind of elastic brake shoe lock ring
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A kind of measurement apparatus and method of ultrasonic transverse wave angle probe acoustic axis angle of deviation
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Steel disc positioning clamping device in the middle of a kind of buffer
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A kind of accessory clamping device and application method
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A kind of new skate of articulated car
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Joint connector used for railway wagon
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Bearing temperature alarming system for wagon
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A kind of portable end station platform
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Connector body grinding, positioning and fixing device
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Screw straightening device and application method thereof
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A kind of lock adjusts device assembling device and method
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Pneumatic wrench semi-automation device
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