Welding neck steel flanges for PN from 0,1 to 20,0 MPa (from 1 to 200 kgf/cm2). Design and dimensions
NORMA vydaná dňa 1.1.1983
Designation standards: GOST 12821-80
Note: NEPLATNÁ
Publication date standards: 1.1.1983
The number of pages: 27
Approximate weight : 81 g (0.18 lbs)
Country: Russian technical standard
Kategória: Technické normy GOST
Implemented changes and corrections:
Amd. 6.83
Amd. 4.88
Amd. 12.89
Amd. 7.92