Yeah, the thing I've found over the years is no matter how badly you treat or mistreat your SKS, it wont care and it'll keep going.
I never mistreated my Chinese, but my friend had one he wouldn't clean very well, he threw it in mud, dirt, sand, water, shot it in the rain, he had a back up one but the Russian one he put through all that torture never once let up, all he had to do was replace the stock.
He has since completely restored it to it's original state, but they are one mighty fine rifle, proud to own one even if it was made by communists.
If there's one thing in this world the Russians and communists are good at, it's weapons.