... dimension; b.largest production capability; c.reliable steel frame lattice manufacturer; d.best price. Steel frame lattice1.Comprehensive type and broadest range ... 25X5…..40X6, 40X8, 40X10,….90X6….Pitch of Load bearding flat bars(mm)12.5,15, 20, 30, 30.6, 32. ... 34.8, 35.3, 40, 60, 80……Pitch of cross bars(mm)38.1, 50, 50.8, 70, 75, 80, ... bar: round type and square twisted type. low cost steel frame lattice