girder bridge cable-reinforcing set

  • 1building construction — Techniques and industry involved in the assembly and erection of structures. Early humans built primarily for shelter, using simple methods. Building materials came from the land, and fabrication was dictated by the limits of the materials and… …

    Universalium

  • 2Bicycle frame — Steel frame of 2000 LeMond Zurich road racing bicycle mounted in a work stand …

    Wikipedia