I read this SF story somewhere in 2000s. I believe it was in English but might have been a translation from the original work. It might have been a short story or a novella.
The story's core premise was about astronauts (crash?) landing on a planet that was inhabited solely by robots. I don't recall if it was a part of their mission or if they did it only to save their lives from hostile natives, the astronauts managed to create metallic disguises for themselves (from ship parts?).
some time later it was revealed that there
actually were no robots, every robot was in fact a human who had disguised himself as a robot to blend in the society
that is all i remember. Can anyone help me identify the author and the story's name?