NA 012
DIN Standards Committee Chemical Apparatus Engineering
Standards
[CURRENT]
DIN 28139-3
DIN 28139-3
Welding necks for glass lined vessels; form S nozzles for lapped divided flange connections; connecting dimensions
Title (German)
Vorschweißbunde für emaillierte Apparate; Form S Stutzen mit geteiltem Losflansch; Anschlußmaße