MRC:
The element,compound,or mixture of which the item is fabricated,excluding any surface treatment,and its location.ANNQ
Material And Location:
Aluminum alloy, qq-a-250/5, alloy alclad 2024, t4 body and steel, fed standard 66, comp 302, 316, 321 or 416 pin. And steel, mil-w-6101 spring
MRC:
The 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 the surface of the item and its location.ANNR
Surface Treatment And Location:
Anodized, mil-a-8625, type 1 body and cadmium, qq-p-416, type 2, class 2 spring