... 5 x 3, 40 x 5 x 3, 50 x 5 x 3, 50 x 7 x 4, 55 x 7 x ... , 30, 30.16, 32.5, 34, 40, 41.25, 45, 50, 60, 60.32, 80, 100 mm etc, also be according ... so 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.4) Material: Mild ...