| 摘要 |
A glow plug is provided to simplify manufacturing process and reduce manufacturing costs by forming an insulating part onto an axis. A glow plug comprises a housing(1100) where the inside is empty; a heating element(1500) fastened on either side of the housing; an axis(1200) fitted into the housing; an insulation part insulation-coated on some part of the surface of the axis; a tube(1900) fitted between the insulation part and the lining of the housing; The heating element has a heating wire(1510). Either part of the axis is electrically connected to the heating wire.
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