steel frame lattice Bearing bar pitch:30,40,60mm Cross bar pitch;50,100mm Plain,Serrated,I- ... shape,IS-shape Hot-dipped gal Steel frame latticeWe ... 12.5, 15, 25, 30, 30.16, 32.5, 34, 40, 41.25, 45, 50, 60, 60.32, 80, 100 mm ... etc, also be according to client's requirement and 30, 40, 60mm are recommended, America standard is available < 1'' x ...