Mil-s-7720 mil spec single material response overall
Mil-s-7720 mil spec 1st material response overall or qq-s-763 fed spec 2nd material response overall or ams-5640 assn std 3rd material response overall
Qq-s-763 fed spec 1st material response overall and mil-s-7720 mil spec 2nd material response overall
Mil-s-7720 mil spec single material response overall or qq-s-763 fed spec single material response overall or ams 5640 assn std single material response overall