NA 052
DIN Standards Committee Road Vehicles and Mobility
Project
Internal combustion engines - Piston rings - Part 3: Coil-spring-loaded oil control rings made of steel
Begin
2025-10-27
Planned document number
ISO/AWI 6626-3
Responsible national committee
NA 052-00-34-04 AK - Piston Rings
Responsible international committee
ISO/TC 22/SC 34/WG 4 - Piston rings