MRC:
The element,compound,or mixture of which an item is fabricated,excluding any surface treatment.MATL
Material (non-core):
Tube, steel carbon, welded or seamless, mt 1010 thrumtx 1020, condition optional, spec qq-t-830, 1/2 od x .419-.408 id
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 a surface.SURF
Surface Treatment (non-core):
Cadmium plate, spec qq-p-416, type 2, class 3