<p>A spark plug having a center electrode and/or a ground electrode with an attached spark portion. The spark portion has a base material and a protective material wherein the base material is highly resistant to spark erosion and the protective material is highly resistant to corrosion.</p>
申请公布号
WO2007118187(A2)
申请公布日期
2007.10.18
申请号
WO2007US66129
申请日期
2007.04.06
申请人
FEDERAL- MOGUL CORPORATION;LEVINA, IRYNA;LYKOWSKI, JAMES, D.
