T.H.D.I. Was established in 1978, by Mr. A.Mollamohseni with the aim of producing all kinds of heavy duty industrial parts,specially gears and gearboxes.
By having up to date machinaries and experienced engineers the company became the only manufacturer of all kinds of gears in iran, up to 8000 m.m. in diameter.
With the help of our managements foresighted decisions and our engineering team, we have achieved the goal of producing spiral bevel gears upto 860mm. in diameter.
Up until now we have made different kinds of high quality gears and other industrial parts according to international standards ordered by our client's needs such as: Cement, steel, agricultural, auto industries,oil and petrochemical plants etc...
Therefore we have earned a good reputation in industrial market.