NA 052
DIN Standards Committee Road Vehicles and Mobility
Standards
[Withdrawn]
DIN 70947
DIN 70947
Piston rings for automotive engineering; D-Rings, Bevelled-edged oil control rings 50 to 200 mm nominal diameter
Title (German)
Kolbenringe für den Kraftfahrzeugbau; D-Ringe, Dachfasenringe mit 50 bis 200 mm Nenndurchmesser