Most of them are made out of pressed steel. Galvanized steel has a dull look to it. I cant say Ive seen any in galvanized steel. Most of these are made to an old OSHA standard, if I remember correctly. Google it. Might have a requirement of being made out of a certain material.
I doubt its galvanized but I just saying FYI galvanized steel and diesel dont mix. I would hate for you to have to pay a huge repair bill.
2013 F250 6.7L Lariat Ultimate Crew Cab two-tone Blue Jean/Tan Nav Duel Alternators Roof Lights
1995 F150 5.0L Eddie Bauer Extended Cab two-tone Dark Blue/Tan Crane Cam, Roller Rocker arms, duel exhaust, Rhino bedliner with diamond plated bed and tailgate rails, Chrome bumpers front and back