
Petroleum and natural gas industries - Steel drill pipe (ISO 11961:2018)
出版:Norwegian Standards (Norges Standardiseringsforbund)

专家解读视频
EN ISO 11961 : 2008 COR 2009 - Identical
ISO 11961:2018 - Identical
EN ISO 11961:2018 - Identical
ISO 11961:2018 - Identical
EN ISO 11961 : 2008 COR 2009 - Identical
EN ISO 11961:2018 - Identical