... 2 High temperature resistant. 3 High abrasion resistance. INSULATORS FOR SPARK PLUGS Technical ParameterDiameter 0.5~1.5mm,Length50~80mm,Insulation ... -aging, high temperature resistance, superior insulation, high strength, good stability, ignition sensitivity, control measurement stability, suitable for use in different environments ... water heater, stove, gas oven and so on. INSULATORS FOR SPARK PLUGS