I just finished remodeling my kitchen and when I raised the stainless steel hood into place it rubbed up against the side cabinets and left a few marks. I tried to remove these with soap and water but it didn't work. I have a semi gloss finish so need a solution that wont damage it.
Try undiluted:
white vinegar
ammonia
bleach
If none of these work, then try TarnX or silver polish.