Subsequently to the approval of the chemical analysis of the raw material, it is sent to heat treatment in continuous electrical furnaces in order to release the tensions.

After the furnace, it follows to the surface chemical treatment (pickling) aiming to tolerate the friction of cold deformation, subsequently it follows to the presses, which will perform the ends that easy the entry of the pipe into the wiredrawer mordant.

The pipes are taken for Wiredrawn, which comprises the pipe’s cold dimensional reduction, until the required specification is obtained, with the use of draw-plate banks and mandrills of hard metal for the process execution.

The finishing of the process comprises the cut, deburring, straightening and immersion in protective oils baths.