astm standard g121
ASTM G21 - 15(2021)e1. An ASTM designation number identifies a unique version of an ASTM standard. G21 - 15(2021)e1. G = corrosion, deterioration, and degradation of materials; 21 = assigned sequential number. 15 = year of original adoption (or, in the case of revision, the year of last...
This is a list of ASTM International standards. Standard designations usually consist of a letter prefix and a sequentially assigned number.
ASTM A-387 Gr11CL2. ASTM A-387 Gr22CL2.
توجه: لطفا پیش از خرید هر محصول، روی دکمه جزئیات کلیک کنید و توضیحات را مطالعه کنید.