05 20 00 Metal Joists 05 30 00 Metal Decking 05 50 00 Metal Fabrications 05 12 40 Steel Erection 05 12 45 Miscellaneous Steel Install
CSI Codes : 05 12 00 Structural Steel Framing, 05 20 00 Metal Joists, 05 30 00 Metal Decking, 05 50 00 Metal Fabrications