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person:("wang jianzhong")
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person:("wang jiandong")
Automobile front door ring and manufacturing method thereof
Design method and manufacturing method of vehicle body side wall roof side rail inner plate
Top cover and side wall connecting structure, design method thereof and vehicle
Arrangement method of third row of safety belts, retractor mounting structure assembly and vehicle
Skylight reinforcing ring structure, skylight reinforcing ring assembly structure and vehicle
Annularlyinsulated pipeline structure and manufacturing method
Side third rail adjustable insulation supporting device
Heat dissipation device, system and method for underground closed pipeline
Lower contact type I-shaped rail insulation supporting device