05 21 00 Steel Joist Framing 05 70 00 Decorative Metal 05 12 40 Steel Erection 05 00 04 Reinforcing Steel 05 80 00 Bridges 05 12 45 Miscellaneous Steel Install
CSI Codes : 05 00 00 Metals, 05 12 00 Structural Steel Framing, 05 21 00 Steel Joist Framing, 05 70 00 Decorative Metal