is it Chinese or Russian? I don't remember seeing it any any of my Armour manuals from my tanker days. The turret looks like a T55/62 with a gland problem. The gun tube diameter looks to big, even with a thermal shield. Dual tracks on both sides, it is either very heavy or it was designed for marsh or water crossings. The old Soviet Union beleived that all of their equipment had to swim and fire during the water crossing. They lost several tank crews trying to shoot while swimming. My guess would be that it is Chinese SP arty and not a tank. I will check some of my sources.
Odd looking
DBII