... 1-1995USA standard , ANSI/NAAMM(MBG531-88)Serrated Steel Grating surface treatment,Hot-dip galvanizing, cold galvanizing, painting ... , or ,do not dealSerrated Steel Grating Superioritya. Material savings: under the same load ... cleaning and maintenance.Serrated Steel Grating applications,Widely used in the platforms, walkways, bridge, ditch cover, covers, ladders, fences ...