... b.largest production capability c.reliable steel frame lattice manufacturer d.best price Steel frame lattice1.Comprehensive type and broadest range in ... , 34, 34.8, 35.3, 40, 60, 80……Pitch of cross bars(mm)38.1, 50, 50.8, 70, 75, 80 ... : plain type, plain I type, serrated type, serrated I type; cross bar: round type and square twisted type. steel ...