NA 003
DIN Standards Committee Valves
Standards
[Withdrawn]
DIN 28454-2
DIN 28454-2
Calibers for couplings for petroleums tank-cars, nominal sizes 50 mm and 80 mm for sealing ring; caliber B
Title (German)
Lehren für Tankwagenkupplungen, NW 50 und NW 80, für Dichtringstück; Lehre B