Especially for automobiles very high standards of reliability, safety and service life are essential. Our commitment to quality, from research and development through the entire production process to logistics and customer service, was confirmed by a successful QM audit performed and certified


ISO 9001

ISO TS 1694



Fracture Splitting technology



بیست و هفتمین سالگرد تاسیس رزمیاران



Production equipment & engineering ability:

SIR co. has 11 production lines, including 5 machining lines for connecting rods and 2 machining lines for piston pins consist of general and special machines and  automated production line imported from Germany and Also there are 3 assembly lines for piston and con.rod, and an equipped manufacturing workshop.

SIR co. owned an excellent team of production and research specialist and a full set of sophisticated production and testing equipment. our engineering team and manufacturing workshop, have the ability to design and manufacture special machines, fixtures and control equipment needed in the production lines