Straight lower B4 head L.60 for electrodes c.12 conic. 10%
B4 lower inclined head L.60 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 […]