I swear stainless doesn't rust, being free of iron, but it is nearly 4 am.
stainless steel can get rust marks in case the surface was treated (for example sanded or polished) with tools that were used on normal steel before... small particles do then contaminate the stainless surface.
stainless steel can get rust marks in case the surface was treated (for example sanded or polished) with tools that were used on normal steel before... small particles do then contaminate the stainless surface.