High-quality alumina silicate ceramic creates a stronger insulator for optimal performance.98% pure copper core provides excellent heat dissipation and conductivity.Cold-rolled thread prevents cross-threading and cylinder head damage.Outstanding material coating provides excellent corrosion protection.The trapezoidal ground electrode and high-quality alumina silicate ceramic further improve acceleration, fuel efficiency, and durability compared to conventional spark plugs.
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High-quality alumina silicate ceramic creates a stronger insulator for optimal performance.98% pure copper core provides excellent heat dissipation an