Inlet valve steel 1.4718 ( din x 45cr si 9 3 ) or equal
exh.valve steel 1.4871 ( din x 53 cr mn ni n 21 9 ) or equal
exh.valve steel nimonic 80 a or equal
exh.valve steel ni 30 or equal
Automotive automobile engine parts, engine valve, engine valve seat inserts, engine valve guide, connect push rod bushes