Example features – Page 10

B8 lower inclined head L.78 for electrodes c.12 conic. 10%

Increased lower inclined B8 head L.88 for electrodes c.12 conic. […]

upper straight B16 head L.138 for ø25 spark plugs – […]

upper inclined B16 head L.160 for ø25 spark plugs – […]

Straight lower B16 head L.98 for electrodes c.12 conic. 10%

B16 lower inclined head L.98 for electrodes c.12 conic. 10%

head B4 upper straight L.80 for spark plugs ø16 – […]

upper straight B4 head L.80 for ø16 cooled spark plugs […]

upper inclined head B4 L.90 for ø16 spark plugs – […]

upper sloping B4 head L.90 for ø16 cooled spark plugs […]

Electrode ø12 L.20 c.9 female conic. 10% central tip

Electrode ø12 L.20 c.9 female conic. 10% tip off center

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