Hmmm, not all of the Norinco guns were. My very fist Norinco back in 1994 was a commercial and was imported and sold with its spike intact. As is my 1990 import pin-barrel SKS-D. Not only was it imported with a bayonet, its the *correct* bayonet for the D which is different from standard SKS bayos.
I find the various laws concerning these things like a bad oder you just cant escape- its best if you just ignore it, because there realy isnt anything you can do about it and its pretty doubtful that anyone else is going to do anthing about it either.
As an anecdote- a buddy of mine bought a MAK90 when they first came out, and immideitly restored the Type56 FSB with the folding spike bayonet, and put a Chinese blond stock back on her. No American parts (at the time an American stock set ran $150 and was NOT marked) no fuss. He dosent call attention to the fact, and no one has ever asked about it. He's shot it in public innumerable times, and even taken it to gunshows and the only one occasion anyone had a hissey fit about it, it was some anal-retentive boot licking shooter, not a GovThug.
OTOH I think there is a cop down in California who got in DEEEEEP crap over having an "Un neutered" SKS. But thats California...