
Petroleum, petrochemical and natural gas industries - Lubrication, shaft-sealing and control-oil systems and auxiliaries Part 4: Self-acting gas seal support systems (ISO 10438-4:2007); English version EN ISO 10438-4:2007, with CD-ROM
出版:German Institute for Standardisation (Deutsches Institut für Normung)

专家解读视频
NEN EN ISO 10438-4:2008 - Identical
NF EN ISO 10438-4:2009 - Identical
UNI EN ISO 10438-4:2009 - Identical
NBN EN ISO 10438-4:2008 - Identical
SS EN ISO 10438-4 Ed. 2 (2007) - Identical
SN EN ISO 10438-4:2008 - Identical