Why is the ceramic part of a spark plug corrugated? - Quora

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Solid copper core for greater spark Longer insulator nose prevents fouling Corrugated ribs on insulator prevents flashover Zinc dipped shell prevents

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Why is the ceramic part of a spark plug corrugated? - Quora

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What is the white part of a spark plug called? - Quora

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Automotive spark plug that fits a variety of domestic applications, designed to increase power, reduce fuel consumption, and improve hydrocarbon

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