Invention Grant
US08348709B1 Method of making a spark plug 失效
制作火花塞的方法

Method of making a spark plug
Abstract:
A method of making a spark plug includes providing a metal shell, an insulator at least partially disposed in the metal shell, a ground electrode coupled to the metal shell, and a center electrode disposed within the insulator. The method also includes depositing a tip substance on the spark plug to form an electrode tip.
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