
Hubbed slip-on-welding steel pipe flanges with ring-joint face for PN 2. 0MPa (20 bar)
NORM herausgegeben am 1.1.1988
Designation standards: GB/T 9116.21-1988
Note: UNGÜLTIG
Publication date standards: 1.1.1988
Country: Chinese technical standard
Kategorie: Technische Normen GB