Patent Certificate

Foldable filter element

Docking structure of automobile air-conditioning blast box and air outlet distribution box

Novel electromagnetic heater device

Air door shaft hole matching structure

Zero sway rotary clamping device

Air inlet test device for automobile air conditioner

Automobile air-conditioning box

An overhead evaporator with a new type of header structure

Air-conditioning pipeline fixed sealing structure passing through automobile front wall sheet metal

Expansion valve pipeline structure passing through sheet metal of automobile front wall

Connection structure of automobile cockpit pipeline and cabin pipeline

Mounting bracket for battery cooler of electric vehicle

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