Only first-doss steel is used in manufacturing of our pipe using the continuous forming process, with longitudinal normalized seam produced by the high frequency ERW method. All requeriments established by the API 5L & 5CT, plus ASTM A53 standards are strictly observed, resulting in the following advantages:

-Highly precise dimensional tolerances, such as roundness, straightness and wall thickness.
-The most reliable high frequency weld seam, obtained from the coalescence of skelp end during the pipe forming process.