NS EN ISO 11961:2008现行
Petroleum And Natural Gas Industries - Steel Drill Pipe
出版：Norwegian Standards (Norges Standardiseringsforbund)
专家解读视频
Defines technical delivery conditions for steel drill pipes to be used in drilling and producing operations.
NF EN ISO 11961:2010 - Identical
NF EN ISO 11961:1997 - Identical
ONORM EN ISO 11961:2009 - Identical
NBN EN ISO 11961:2009 - Identical
SN EN ISO 11961:2009 - Identical
DIN EN ISO 11961 (2009-03) - Identical
UNI EN ISO 11961:2009 - Identical
SS EN ISO 11961 Ed. 2 (2008) - Identical
NEN EN ISO 11961:2008 - Identical
ONORM EN ISO 11961:1997 - Identical
BS EN ISO 11961:2008 - Identical
ONORM EN ISO 11961:2010 - Identical
