
Petroleum and natural gas industries - Steel pipes for use as drill pipe - Specification
出版:International Organization for Standardization

专家解读视频
I.S. EN ISO 11961:1997 - Identical
NBN EN ISO 11961:1997 - Identical
ONORM EN ISO 11961:1997 - Identical
DIN EN ISO 11961 (1997-03) - Identical
BS EN ISO 11961:1997 - Identical
NEN EN ISO 11961:1997 - Identical
SN EN ISO 11961:1997 - Identical
SS EN ISO 11961 Ed. 1 (1997) - Identical
PN EN ISO 11961:2001 - Identical
NS EN ISO 11961 Ed. 1 (1997) - Identical
NF EN ISO 11961:1997 - Identical
UNI EN ISO 11961:2001 - Identical