05 10 00 Structural Metal Framing 05 51 00 Metal Stairs 05 52 00 Metal Railings 05 54 00 Metal Floor Plates 05 59 00 Metal Specialties 23 31 00 HVAC Ducts and Casings 50 59 00 Construction Material Delivery/Hauling 50 61 00 Construction Material Supplier 50 64 00 HVAC Supplies

05 10 00 Structural Metal Framing 05 13 00 Structural Stainless-Steel Framing 05 30 00 Metal Decking 05 31 00 Steel Decking 05 50 00 Metal Fabrications 05 51 00 Metal Stairs 05 52 00 Metal Railings 05 53 00 Metal Gratings 05 54 00 Metal Floor Plates 05 58 00 Formed Metal Fabrications 13 34 00 Fabricated Engineered Structures 50 59 00 Construction Material Delivery/Hauling 50 61 00 Construction Material Supplier