Spark plug with center electrode and surrounding ground...
Spark plug with easy-to-recognize identification marks
Spark plug with easy-to-recognize identification marks
Spark plug with glaze coating
Spark plug with high capability to ignite air-fuel mixture
Spark plug with marking layer composition
Spark plug with nickel alloy electrode base material
Spark plug with noble metal chip joined by unique laser...
Spark plug with sealing ring around center electrode
Spark plug with slant peripheral surface
Sparking plug
Starting element having ceramic component electrostatically...
Structure of spark plug achieving high degree of air-tightness