... , 3,Surface:Untreatment,Galvanized,Painted...... 1.Steel Grating 1).Bearing bar pitches may be 12.5 ... 40,60,80,90mm, of which 20,30mm and 40mm are recommended. 2).Cross bar pitch may ... be 24-200mm, of which 30,38,50,76mm and 100mm are recommended. 3).Type: Plain, Serrated ," ... 5KPaPEDESTRIAN TRAFFIC PUBLIC, RESIDENTIAL AND LIGHT USE UDL=3KPaPEDESTRIAN TRAFFIC PUBLIC, OMMERCIAL AND CROWD USE UDL=4KPa ...