Electrically conductive sealing mass for spark plugs

Ignition device for internal combustion engine and a...

Method for fabricating spark plug with piezoelectric sensor...

Plasma-generating plug

Sealing a spark plug electrode

Spark plug

Spark plug

Spark plug

Spark plug and method of manufacturing the same

Spark plug and methods of construction thereof

Spark plug and producing method thereof

Spark plug electrode including a profiled noble-metal part

Spark plug for internal combustion engine

Spark plug for internal-combustion engine and manufacture method

Spark plug of an internal combustion engine

Spark plug structure

Spark plug with excellent impact resistance conductive seal,...

Spark plug with multi-layer firing tip