MRC:
The element,compound,or mixture of which an item is fabricated,excluding any surface treatment.MATL
Material:
Steel, sae 1070 or steel, sae 1072 or steel, sae 1074 or steel, sae 1075 or steel, sae 1078 or steel, sae 1080 or steel, sae 1084 or steel, sae 1085 or steel, sae 1086 or steel, sae 1090 or steel, aisi 1070 or steel, aisi 1074 or steel, aisi 1078 or steel, aisi 1080 or steel, aisi 1084 or steel, aisi 1085 or steel, aisi 1090 or steel, federal standard 66, comp 1070 or steel, federal standard 66, comp 1072 or steel, federal standard 66, comp 1074 or steel, federal standard 66, comp 1075 or steel, federal standard 66, comp 1078 or steel, federal standard 66, comp 1080 or steel, federal standard 66, comp 1084 or steel, federal standard 66, comp 1085 or steel, federal standard 66, comp 1086 or steel, federal standard 66, comp 1090 or steel, mil-s-46049