
Circular tubes for structures in aluminium and aluminium alloys. Diameter 6 mm <= D <= 100 mm. Thickness 1 mm <= a <= 6 mm. Dimensions
出版:British Standards Institution

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© British Standards Institution 2013
I.S. EN 2257:1997 - Identical
NS EN 2257 Ed. 1 (1997) - Identical
SS EN 2257 Ed. 1 (1997) - Identical
UNE EN 2257:1997 - Identical
NEN EN 2257:1997 - Identical
DIN EN 2257 (1997-03) - Identical
ONORM EN 2257:1997 - Identical
NBN EN 2257:1997 - Identical
NF EN 2257:1997 - Identical
UNI EN 2257:1997 - Identical