NS EN 10090 Ed. 1 (1999)现行
Valves Steels And Alloys For Internal Combustion Engines
出版：Norwegian Standards (Norges Standardiseringsforbund)
专家解读视频
Applicable to grades of wrought high-alloy materials, for use in intake and exhaust valves in reciprocating internal combustion engines. Applies to bars, wire, rod and forgings, and to surface finishes. Not applicable to alloys resistant to wear and corrosion used for protection of valve seat surfaces.
NEN EN 10090:1998 - Identical
BS EN 10090:1998 - Identical
DIN EN 10090 (1998-03) - Identical
ONORM EN 10090:1998 - Identical
NF EN 10090:1998 - Identical
NBN EN 10090:1998 - Identical
UNI EN 10090:2000 - Identical
I.S. EN 10090:1998 - Identical
SS EN 10090 Ed. 1 (1998) - Identical
UNE EN 10090:1998 - Identical
SN EN 10090:1999 - Identical
