... and Middle East. Hot dipped galvanized/electro galvanized Steel Grating Steel Grating Mesh is made by welding with flat ... etc . 6.Production Flow Chart: 6. The specification of Steel Grating: No.ItemDescription1Bearing Bar25x3, 25x4, 25x4.5, 25x5, 30x3 ... A36, A1011, A569, Q235, S275JR, SS304, SS400, Mild steel & Low carbon steel, etc5Surface TreatmentBlack, self colour, hot dip galvanized, painted, ...