Tubular steel sections are of great interest for the construction industry due to shorter installation times, strength, duration and rigidity, as well as ease of use, leading to high overall economy. Moreover, their attractive appearance gives them great aesthetic appeal.

There are different kinds of carpentry sections:

• Series A, B and C for carpentry and lock-making
  These are pickled steel sections for carpentry and lock-making. They have a carefully designed aesthetic appeal with fl at pickled steel surfaces that can be painted, galvanised, etc. They are manufactured with precise measurements, with perfect coupling between sections. With regard to labour costs, they are very economical and do not require straightening or welding of bars or angles.
• D Series for carpentry with seals
  Series of galvanised steel sections with housings for seals (assembly with watertight seal) for doors and windows: carpentry for general use. Ideal for applications such as shop premises, ground floors, sports installations, industrial buildings, schools, outside doors into gardens of detached homes, etc. They are also used frequently for singular buildings in which an appropriate material is sought for large glazed surfaces, or with an attractive, a esthetic appearance.