Steel Grating, Stair Tread, Galvanized Steel Grating, Steel Bar Grating, Black Steel Grating Steel grating is made by welding with flat steel and bars with certain distances. It goes through cutting, opening, edging and other processes. The products enjoy the features of high strength, light structure, high bearing, convenience for loading and other properties. The hot dipped zinc coating gives the product excellent anti-corrosion resistance. Steel mesh grating is widely used in the platform, corridor, bridge, well covers, stairs, fencing for petroleum, chemical, power plant, waste treatment plant, civil engineering projects and environmental projects. Center to Center Bearing Bar Spacing: we usually supply with 30mm or 40mm Center to Center Cross Bar Spacing: usually supply with 50mm or 100mm. and we are also pleased to accept your special order.