KW3.0 Air heater (hereinafter referred to as the heater) is independent to the original engine system, it makes use of 12V or 24V direct current to drive.
The spark plug should not only bear the rapid change of temperature shock, pressure shock and chemical corrosion in the combustion chamber, but also be able to withstand at least 30 thousand volts of high pressure ignition pulse. Therefore, the spark plug