Spark Plug, Suitable for Auto, Vehicles, Motors and Other Gasoline Engines Model Number:Spark plugs Features: Multi-ribs of insulator eliminates flash-over Insulator made of heat alumina, strong resistant to heat shock, great mechanic and electric features and super insulation Nickel-plated housing prevents oxidation, corrosion, heat crimping process ensures absolute gas-tight fit Inner sealing with conductive glass ensures fine conductivity and sealing Multi-layer gaskets are elastically strong and reliable in sealing Copper core electrode prevents oxidation and corrosion, good electric, heat conductivity and long spark plug service life

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