... , Serrated Style Steel Grating and I Bar Type Steel Grating. They are widely ... , Serrated style , I section style♥ Bearing bar specification: The specification of plain type and serrated ... bar pitch25, 30, 30.16, 32.5, 34.3, 40, 50, 60, 62, 65mm, etc.3Cross bar5x5, 6x6, 8x8mm (twisted bar or round bar ... )4Cross bar pitch40, 50, 60, 65, 76, 100, ...