a.full range in type & dimension; b.largest production capability; c.reliable steel frame lattice manufacturer; d.best price. Steel frame lattice1.Comprehensive type and broadest range in dimension.1.1 Material Q235 , or other equivalent material1.2 Grating Conformity Standard: YB/T4001, ANSI/NAAMM-MBG531, BS4592, AS1657, JS31011.3 Grating Dimension Load Bearing Flat Bar sizeThickness≥3mm, depth ...