
Petroleum and natural gas industries—Threading,gauging and thread inspection of casing,tubing,and line pipe threads
NORM herausgegeben am 1.11.2017
Designation standards: GB/T 9253.2-2017
Note: UNGĂśLTIG
Publication date standards: 1.11.2017
Country: Chinese technical standard
Kategorie: Technische Normen GB