Spark plug crimping die and process

Spark plug electrode having iridium based sphere and method for

Spark plug including a wear-resistant electrode tip made...

Spark plug manufacturing apparatus and method of...

Spark plug manufacturing method ensuring accurate and...

Spark plug shell having a bimetallic ground electrode, spark...

Spark plug tip having platinum based alloys

Spark plug with fine wire rivet firing tips and method for its m

Spark plug with ground electrode having mechanically locked...

Spark plug with noble metal chip joined by unique laser...

Spark plug with platinum tip partially embedded in an electrode

Top and side firing spark plug

Wear-resistant spark plug electrode tip containing platinum allo