Mil-r-6130, ty ii, gr a, cd soft mil spec single material response
Mil-r-6130, grade c, cond soft mil spec single material response
Mil-r-6130,type 1,grade a mil spec single material response
Mil-r-6130, type 2, grade a, cond medium mil spec single material response
Mil-r-6130, type 2, grade b mil spec single material response