Corrugation: Five ribs are provided to extend the insulating surface distance between the terminal and the metal shell, preventing flash-over.
Metal shell: Plated to provide superior resistance to high-temperature corrosion.
Insulator: Used by high aluminum alloy ceramic, have reliable leakproofness,durableness and heat resistance.
Gasket: The special design prevents any leakage of combustion gases.

Rural Shi Knight is a spark plug factory to produce all kinds of vehicles,motorized trailers, and various gasoline engine spark plug manufacturer.Is a production and sales to domestic and foreign wholesale produced mainly large professional spark plug plant.We can plant according to customers sample or technical requirements applicable to the manufacture of cars, SUVs, motorcycles and other vehicles of unipolarity,multipolarity,platinum, iridium, etc., various types of spark plugs,which greatly limits to meet customer requirements. Ordinary spark plugs and a high standard of resistance type I plant,platinum iridium spark plugs, long life,greatly improves the combustion efficiency of the combustion chamber.Shi Knight spark plug factory has first-class products, quality service, fast delivery and the best prices, has been the trust of domestic and foreign distributors and end customers.In addition, we can also according to customer requirements for product quality requirements, sample processing OEM production.We wholeheartedly welcome the new and old customers to our factory to discuss the guidance note.
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