Mil-t-3520,ty 1,1015 thru 1022 mil spec single material response overall
Mil-t-3520, type 3, class 7 mil spec single material response
Mil-t-3520,fs1010-fs1025 mil spec single material response overall
Mil-t-3520,ty 1 mil spec 1st material response overall or astm a108 assn std 2nd material response overall or astm a108 assn std 3rd material response overall or astm a108 assn std 4th material response overall