MRC:
The environmental elements or conditions that an item is designed or protected to resist or withstand satisfactorily.ADZC
Environmental Protection:
Abrasion resistant and corrosion resistant and hydraulic fluid and hydrocarbon fuel and moisture resistant and nonphenolic grease solvent and weather resistant
MRC:
The lettering or design on the item,or that is the item.AYBM
Inscription:
Warn lts, ckpt flood lts, air cond, oxygen ind, ckpt spot lts, rain remover, pitot heat, ckpt lts, winshield defog