More than 30 petrochemical and refinery companies clients, some are listed below


Tehran Oil Refining Company

Supplying gas turbine gears. Duman has been rewarded for them in 2016

as the top supplier of Tehran refining company




Tabriz Petrochemical Company

Supplying crown wheel and pinion of SUMITOMO gearbox of Tabriz Petrochemical Company’s cooling towers in 12 sets with satisfactory performance certificate of customer. Manufacturing 3 sets of gear and shaft for SUMITOMO SPEED REDUCER for Tabriz Petrochemical Company. Supplying sintered metallic powder filtering. Supplying O-ring and PTFE diaphragms for a variety of pumps.

Manufacturing and supply of various types of grid and stainless steel foil, stainless steel shafts, sight glasses and precision punched sheets.


Tabriz Oil Refining Company

Supplying of helical gears and crown wheel pinion for Hansen gearbox companies in 6 sets.

Supplying 15 sintered metallic powder filtering.




Shahid Hasheminejad Gas Refining Company ( Khangiran )

Manufacturing of 60 sets of FLEXIBLE COUPLINGS)





Gachsaran oil and gas company

Manufacture and supply of FILA DELPHIA pinion and crown wheel gearbox in 12 sets.





Aria Sasol Polymer Company

Construction of 1300 hangers with a variety of materials such as stainless steel and Inconel.





Shazand oil refining company

Manufacturing Demister Pad





Kangan Gas Power Plant

Supplying crown wheel&pinion in 4sets for FILA DELPHIA gearboxes.






Shiraz Oil Refining Company

Supplying gear and vertical pinion shaft 2 sets.

Suppling matched Spiral bevel gears in 2 sets.