Iron Horse bike identification

[dakulala]

Hello. I’m new to this forum. Seek an info regarding this bike. My early guess this bike maybe AT100 model but not very sure.

I believe this original color is red and it was painted with black color.

The emblem is Iron Horse
And the number stamped at the BB shell is D3117434

Currently working to restore this bike but don’t know the model to find the decal.

Thanks