steel grating Min.order:100 pieces FOB price:US $ 99-399/pieces Payment:T/T, ... , well cover, trench cover, sump cover,compound gratings, storage shelves, ladder, fences and handrail so on for construction project, oil project ... /60/50G505/60/50G555/60/50G605/60/50 325/30/100 steel grating (ISO9001:2000)