AECMA PREN 2634-1985 航空航天系列.2014-T4511对粗晶粒边缘区有控制的挤压棒材和型材1a或1,2mm小于或等于直径D小于或等于200 mm
Aerospace Series Aluminium Alloy 2014-T4511 Bar and Section 1,2 Less Than or Equal to (a or D) Less Than or Equal to 200 mm with Peripheral Coarse Grain Control Edition 1
This industrial standard for the aerospace sector has been drawn up under the responsibility of AECMA
(Associa tion Européenne des Constructeurs de Matériel Aérospatial).