GSIN
*5132A
*5136A
*5139A
*5179FB
*B101A
*B109A
*B202A
*B219A
*C111A
— *Bridges, Elevated Highways, Tunnels, Subways and Railroads
*Construction for Mining and Manufacturing
*Construction Services, Not Elsewhere Specified
*General Contractor Services, Not Elsewhere Specified
*Environmental Impact Studies
*Other Environmental Studies
*Geotechnical Studies - Licensed Engineers
*Other Engineering Studies
*Architect/Engineer Services - Administration & Service Buildings
*Architect/Engineer Services - Airfield, Communication and Missile Facilities
*Architect/Engineer Services - Educational Buildings
*Architect/Engineer Services - Hospital Buildings
*Architect/Engineer Services - Industrial Buildings
*Architect/Engineer Services - Residential Buildings
*Architect/Engineer Services - Warehouse Buildings
*Architect/Engineer Services Research and Development Facilities
*Architectual Services - Buildings
*Architectural Services: Statement of Requirements or Building Programming
*Architect and Engineering Services - Buildings
*Engineering Services
*Professional Special Services, EDP, Not Elsewhere Specified
*Environmental Site Investigation
*Materials Inspection and Quality Assurance
*Scaffolding Equipment and Concrete Forms
*Forms, Concrete
*Cement, Portland
*Cement, Roofing
*Concrete
*Concrete, Joint Sealer
*Concrete, Ready-Mix
*Concrete, Pre-Mixed in Bags
*Emulsion, Asphalt
*Primer, Asphalt
*Precast Concrete Products
*Expansion Joint Filler, for Concrete
*Precast, Prestressed Concrete Units
*Structural Members, Concrete, Precast, Prestressed
*Slabs, Roof, Wall and Floor, Concrete, Precast, Prestressed
*Piling, Concrete, Precast, Prestressed
*Trenches, Concrete, Precast, Prestressed
*Walls, Retaining, Concrete, Precast, Prestressed
*Land and Building Appraisal