The material used to insulate the center electrode of a spark plug , it is hard and resistant to damage by heat.
PORCELAIN
Meaning of PORCELAIN in English
English dictionary of automotive terms. Английский словарь автомобильных терминов. 2012
The material used to insulate the center electrode of a spark plug , it is hard and resistant to damage by heat.
English dictionary of automotive terms. Английский словарь автомобильных терминов. 2012