... , 30x3, 30x4, 30x5, 32x3, 32x5, 40x5, 50…75x8mm, etc.2Bearing 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, 101.6 ... floor support and elevated walkway. It can be used for ceiling, interior decoration, decoration, platform aisle, ventilation windows, (Wells), advertising plaque and other ...