... also be used. Grating with the ventilation, lighting, cooling, anti-skid, explosion and other properties1.Material of steel bar grating: Mild Steel or Stainless Steel Weaving: plain ... standardYB/T4001, ANSI/NAAMM-MBG531, BS4592, AS1657, JS3101Grating Steel Material:Low Carbon Steel, Mild Steel, Grating Size:3'x20', 3'x24', 3'x30', 1000x1000 ...