... compound gratings, storage shelves, ladder, fences and handrail so on for construction project, oil project, seaport, power plant, water plant, ... on surfaceUsage:This kind of steel grating is the most commonly used in projects Gratings with cross bar centers ... : light grating and very economical. Usage: The products most commonly used for Belt corridor, storage shelf,Attic panel, trestle, guardrail, ...