The company is mainly engaged in development work relating to the design and construction supervision of a railway, or the complex formed from the track, the switches, the ballast or other materials necessary for mounting, fixing and adjustment of the railroad on which the trains run. The seat rail road we recognize the body and railway superstructure, for the roadway mean all of the civil works that predispose the roadway itself which has the function to directly support the plan for the platform, the loads transmitted from the circulation railway superstructure. The latter is the traditional complex of the ballast and the armament, referred classic component for the constrained guide is binary. The railway superstructure is generally made ​​up of:

• • From which together with the cross rails, which are fixed through appropriate organs of attack, and the diversion of equipment (switches) are the binary (weapons;
• • From a bed of gravel, which is called the ballast which supports the railway equipment.