... , storage shelves, ladder, fences and handrail so on for construction project, oil project, seaport, power plant, water plant, defense project, chemical factory ... Grating and I Bar Type Steel Grating.4)Surface Treatment: Untreated, Painting ,Powder coated or Hot dip Galvanizing5)Steel grating standards: A ... /50G555/60/50G605/60/50 325/30/100 steel grating (ISO9001:2000)