Mil-s-5059 mil spec 1st material response overall or mil-l-s-6721 mil spec 2nd material response overall
Mil-s-5059 mil spec 1st material response overall or mil-l-s-6721 mil spec 2nd material response overall
Mil-s-5059 mil spec single material response or qq-s-766 fed spec single material response
Mil-s-5059,cond quarter hard mil spec single material response
Mil-s-5059 mil spec 1st material response and mil-s-6721 mil spec 2nd material response