Hot dip galvanized steel grating(Factory) Material:Galvanized sheet Flat bar:3-8mm Twisted bar:common 6 mm Automatic welcome Steel grating The press welded steel grating,requested by the customers,is made of load flat steel bar and cross bars,placed horizontally and vertically,and at an equal pitch apart,by welding with 200-ton hydraulic resistance automatic welding equipment,then cutting, ...