NA 132
DIN Standards Committee Shipbuilding and Marine Technology
Standards
[Withdrawn]
DIN 83412-1
DIN 83412-1
Elliptical manhole covers for bunkers and tanks on ships; assembly, installation
Title (German)
Elliptische Mannloch-Verschlüsse für Bunker und Tanks auf Schiffen; Zusammenstellung, Einbau