MRC:
The specification,standard,or manufacturers reference,and the classification designation,such as type,class,grade,and the like,that identifies the surface treatment material.STDC
Surface Treatment Specification:
Qq-p-416, type 2, cl 3 federal specification 1st treatment response or mil-c-81562 type 2, cl 3 military specification 1st treatment response or mil-c-81562, type 2, cl 3 military specification 2nd treatment response and mil-c-81562, type 2, cl 3 military specification 3rd treatment response or mil-c-81562, type 2 military specification 4th treatment response or qq-z-325, type 2 military specification 4th treatment response