... :Low carbon steel 2.Top: plain 3.Cross bar: round 4.Standard:ANSI/NAAMM(MBG531-88),BS4592-1987,AS1657-1985 Heteng ... product excellent anti-corrosion resistance.Steel grating is widely used in the platform, corridor, bridge, well covers, stairs, fencing ... ,6000mm,6100mmGeneral panel width:1000mm,1100mmFinished:untreated,painted or hot dip galvanizedTop:plain or serratedStandard:ANSI/NAAMM(MBG531-88 ...