ISO 6622-1:2003 EN 9a98359c
Internal combustion engines — Piston rings — Part 1: Rectangular rings made of cast iron
废止
发布日期 :
2003-12-01
实施日期 :
ISO/TR 4956:1984 EN 53da384f
Wrought steels for use at elevated temperatures in engines
废止
发布日期 :
1984-04-01
实施日期 :