... -shape 4)Hot-dipped galvanized,Painted,Untre Galvanized steel grating1)Material: There are mill steel black, hot dip Galvanizing and stainless ... gratings, storage shelves, ladder, fences and handrail so on for construction project, oil project, seaport, power plant, water plant, defense project ... /60/50G555/60/50G605/60/50 Hot dipped serrated galvanized construction material (manufacturer)