1.Galvanized steel grating 2.Metal grating 3.ASTM A123,SS400 4.Common ... .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 ≥ ... not limited to above.1.4 Grating type: flat bar: plain type, plain I type, serrated type, serrated I ...