... at far less weight and costs. Bar Grating I-Bar Grating is the most widely used and provides ... far less weight and cost. With its unique I-bar shape, this grating is attractive and is ... are recommended.2.Cross bar pitches may be 24-200mm,of which 50mm,76mm and100mm are recommended. ... 3.Surface-treatment:Galvanized ,black4.Type:Plain,I bar and Serrated steel grating It's extension product ...