05 50 00 Metal Fabrications 08 90 00 Louvers and Vents 10 70 00 Exterior Specialties 10 82 00 Grilles and Screens 05 52 00 Metal Railings 05 10 00 Structural Metal Framing 43 40 00 Gas and Liquid Storage 08 11 00 Metal Doors and Frames 08 31 00 Access Doors and Panels 10 26 00 Wall and Door Protection 10 26 13 Corner Guards 12 48 19 Entrance Floor Gratings 13 20 00 Special Purpose Rooms 14 91 82 Trash Chutes 14 92 00 Pneumatic Tube Systems 23 13 00 Facility Fuel-Storage Tanks 41 00 00 Material Processing and Handling Equipment

23 13 00 Facility Fuel-Storage Tanks 40 14 00 Fuel Gases Process Piping 02 65 00 Underground Storage Tank Removal 33 56 00 Fuel-Storage Tanks 40 22 00 Petroleum Products Piping 43 10 00 Gas Handling Equipment