custom fabrication of systemized steel building frame components

Custom fabrication of systemized steel building frame components, other than, for use in drainage structures, water detention structures, storm water treatment structures, retaining walls, bridge structures, tunnel structures and erosion control structures

Steel components for building construction, namely, pre-fabricated structural moment resistant steel frames and joints, other than use in drainage structures, water detention structures, storm water treatment structures, retaining walls, bridge structures, tunnel structures and erosion control structures