I checked the site given in the first post, and from there I gather that the models with Farsi names are built with Taiwanese/Chinese engines in Iran and others are imported. But the variety is there.
We should have bikes of different types/styles in Pakistan also. Ones that don't sell in large numbers but are still feasible for the importers. As with these bikes and Irani company, the existing Pakistani bike manufacturers should be given special incentives to import bikes for special purposes.