Step 4: Cleanup and Paint the Parts
Plasma cut parts, while accurate, tend to have excessive slag buildup, especially on thicker parts. So once the parts come off the plasma table, step one is to grind off the slag. Next check that the hole sizes have not been affected as plasma cutters sometimes have difficulty creating small holes, and enlarging said holes to right size with a drill bit might be necessary. Then for corrosion protection and a little style I suggest adding a nice coat of spray paint.