MRC:
The element,compound,or mixture of which the individual unit weight is fabricated,excluding any surface treatment.ATHN
Individual Unit Weight Material:
Steel, mil-s-18729, comp 4130, cond n
MRC:
Consists of plating,dip,and/or coating that cannot be wiped off. plating and/or coating is any chemical and/or metallic additive,electrochemical,or mild mechanical process which protects an individual unit weight surface.ATHP
Individual Unit Weight Surface Treatment:
Cadmium plated, type 2, cl 2, fw-4006, fscm 97499