مقرون به صرفه astm a351 cf8m مورد استفاده در سقف
ASTM A351-2018 . ASTM A351-2018. : 600. : Designation: A351/A351M − 18Standard Specif i cation forCastings, Austenitic, for Pressure-Containing Parts 1This standard is issued under the f i xed designation A351/A351M; the number immediately following the designation indicates the yearof original adoption or, in the case of revision