GB/T 12221-1989

Metal valves for use in flanged pipe systems—Face-to -face and centre-to-face dimensions

NORMA vydána dne 4.1.1990

The information about the standard:

Designation standards: GB/T 12221-1989
Note: NEPLATNÁ
Publication date standards: 4.1.1990
Country: Chinese technical standard
Kategorie: Technické normy GB