They couldve probably galvanized it, but didnt because they are stupid. The type of stainless steel they used is finicky at best as I understand and isnt really designed to be in open outdoor environments, so they used it for a car. I dont fully understand the details of why its fucky just that it is, I aint a metallurgical expert im a redneck who just knows what is good steel from texture, taste, and smacking it into shit.