MRC:
The specification,standard,or manufacturers reference,and the classification designation,such as class,condition,temper,and the like,that identifies the material.MDCL
Material Specification:
Mil-s-5059, comp 302 military specification single material response or mil-s-5059, comp 301 military specification single material response or mil-s-5059, comp 316 military specification single material response or mil-s-6721, comp 321 military specification single material response or astm a582, comp 303 assn standard single material response
