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Internal combustion engines — Piston rings — Part 4: General specifications

Internal combustion engines — Piston rings — Part 4: General specifications

Internal combustion engines — Piston rings — Part 4: General specifications

Overview ISO 6621-4:2024 sets forth the general specifications for piston rings used in reciprocating internal combustion engines. Developed by the International Organization for Standardization (ISO…

Internal combustion engines — Piston rings — Part 4: General specifications