321216 Asphalt Paving 033000 Cement 033000 Concrete 4000 psi 032000 Fabricated Rebar Buy Clean Colorado GWP Limits All Charts 041200 Clay Brick Veneer 042200 CMU 051200 Fabricated Hot-rolled Steel 051200 Fabricated Hollow Structural Sections 051200 Fabricated Plate Steel 055000 Galvanized Structural CFS Back 072113 Rigid Insulation - Mineral Wool 072113 Rigid Insulation - XPS 072113 Rigid Insulation - Polyiso 088100 Flat Glass