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:
Astm b211, alloy 6061, temp t6 assn standard 1st material response or astm b221, alloy 5083, temp h111 assn standard 2nd material response or astm b221, alloy 5086, temp h111 assn standard 3rd material response or astm b209, alloy 6061, temp t6 assn standard 1st material response or astm b209, alloy 5083, temp h32 assn standard 2nd material response or astm b209, alloy 5086, adtq2bejaa8.160 assn standard 3rd material response