Steel tongue-and-groove flanges for PN up to 6,4 MPa (64 kgf/cm2) and DN up to 300 mm. Connecting dimensions
STANDARD published on 1.1.1979
Designation standards: GOST 22512-77
Publication date standards: 1.1.1979
The number of pages: 9
Approximate weight : 27 g (0.06 lbs)
Country: Russian technical standard
Category: Technical standards GOST