Stainless Steel - ???? is rated/received certificates of:
USA:PG-13
Steel - 1945 is rated/received certificates of: UK:U
Sons of Steel - 1988 is rated/received certificates of: Australia:M
Steel City - 2006 is rated/received certificates of: USA:R
Fists of Steel - 1991 is rated/received certificates of: USA:R
Men of Steel - 1932 is rated/received certificates of: UK:U
Max Steel - 2001 is rated/received certificates of: USA:TV-Y7
High Steel - 1966 is rated/received certificates of: Canada:G (Ontario)
Yep, you can weld steel to stainless and you can weld stainless to steel. You can use steel or stainless welding rod in either case but the steel or steel welding rod will of course rust.
Well, the answer lies in the question; by saying 'real' stainless steel, you are implying that there are fake metals which go under the name 'stainless steel', thus the difference is that the stainless steel in refigerators is actually stainless steel, and the fake stainless steel is not...thus your question is answered...
No, Stainless steel is not porous. Steel how ever is.
stainless steel
Ring of Steel - 1994 is rated/received certificates of: UK:15 USA:R