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Hydrogen Technologies Standards form the basic framework for market ramp-up
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Standards [CURRENT]

DIN EN 2257
Aerospace series - Circular tubes for structures in aluminium and aluminium alloys; diameter 6 mm ≤ D ≤ 100 mm, thickness 1 mm ≤ a ≤ 6 mm; dimensions; German version EN 2257:1997

Title (German)

Luft- und Raumfahrt - Runde Konstruktionsrohre aus Aluminium und Aluminiumlegierungen; Durchmesser 6 mm ≤ D ≤ 100 mm, Wanddicken 1 mm ≤ a ≤ 6 mm; Maße; Deutsche Fassung EN 2257:1997