AECMA PREN 3515-1988 航空航天系列.钢FE-PL711 空气熔炼调质的钢 锻件 De小于或等于25 mm 1100MPa小于或等于Rm小于或等于1300MPa
Aerospace Series Steel FE-PL711 Hardened and Tempered 1100 Less Than or Equal to Rm Less Than or Equal to 1300 MPa Forgings De Less Than or Equal to 25 mm Issue P 1