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AECMA PREN 2048   2001   Aerospace Series Extruded L-Section, in Aluminium Alloys Dimensions Edition P 2; Supersedes Edition P 1: August 2000; Replaced by EN 2048 20 $
AECMA PREN 2048   2000   (Withdrawn)Aerospace Series Extruded L-Section, in Aluminium Alloys Dimensions Edition P1; Supersedes Edition 1: December 1976 10 $
AECMA PREN 2048   1976   L-Section Aluminium Alloy Extrusions Dimensions Aerospace Series Edition 1 10 $