... :30,40,60mm 2>Cross bar pitch;50,100mm 3>Plain,Serrated,I-shape steel grating1 ... 3, 38 x 5 x 3, 40 x 5 x 3, 50 x 5 x 3, 50 x ... , 32.5, 34, 40, 41.25, 45, 50, 60, 60.32, 80, 100 mm etc, also be according to ... on.> 3) Cross Bar Pitch (center to center):38, 50, 76, 100, 101.6mm etc, also be according ... to client's requirement and 50, 100mm are recommended, America standard is available. ...