I have fired thousands of rounds of Norinco. It is good stuff!
I bought 2 cases of this stuff back in the '90's (I don't recall the exact price, but $200 per 1K rings a bell...) It shot fine but the brass was crap... I encountered split necks in about 1 of every 7-8 rounds I fired. I didn't trust the brass and wound up scrapping it.At 25 cents a round I would buy all you can afford.
I fired a couple of thousand rounds of this in the mid 1990's and from what I remember it came in yellow boxes with a headstamp marked "JC" along with a few other letters.
The brass was good for reloading and as I remember some of my most accurate AR handloads were made with this brass.