I.S. EN ISO 11961:1997被替代
Petroleum and Natural gas Industries - Steel Pipes for use as Drill Pipe - Specification
出版：National Standards Authority of Ireland
专家解读视频
Covers the technical delivery conditions of steel drill pipes suitable for use in drilling and producing operations.
NS EN ISO 11961 Ed. 1 (1997) - Identical
NF EN ISO 11961:1997 - Identical
UNI EN ISO 11961:2001 - Identical
NBN EN ISO 11961:1997 - Identical
SN EN ISO 11961:1997 - Identical
NEN EN ISO 11961:1997 - Identical
BS EN ISO 11961:1997 - Identical
DIN EN ISO 11961 (1997-03) - Identical
ONORM EN ISO 11961:1997 - Identical
SS EN ISO 11961 Ed. 1 (1997) - Identical
ISO 11961:1996 - Identical
