Method for manufacturing spark plug and spark plug

Method of making a spark plug including laser welding a noble me

Middle electrode with precious metal reinforcement and a...

Moisture resistant ceramic igniter for a burner

Multi fire spark plug

Multi-polarity type spark plug for use in an internal combustion

Multielectrode spark plug

Multiple gap spark plug for internal combustion engine

Negative electron affinity spark plug

Noble metal tip for spark plug electrode and method of...

Noble metal tip for spark plug electrode and method of...

Off center electrode spark plug

Platinum-coated igniters

Process for the manufacture of a platinum-tipped bimetallic cent

Production method of spark plug designed to provide high...

Radial gap high thread spark plug

Radiofrequency plasma spark plug

Rapid heat-dissipating type spark plug for internal combustion e

Readily assembled spark electrode

Resistor-incorporated spark plug and manufacturing method of res