Help with identifying SKS

[Miller Tyme]

I would say not Chinese because of the bayonet being a flat blade rather than a cruciform bayonet. I don't know that China ever fitted any flat-bladed type bayonets to their SKSs???

Early production Chinese SKS's, so called Sino-Soviet SKS's had blade bayonets and a fair number of them where built with left over parts from when Soviet production ended.