... >Hot-dipped galvanized,Painted,Untrea. Manufacturing ProcessSteel grating is made by the world first-class Italian ... strength.InstallationThere are two ways of installation for grating.*One way is by welding and the ... , A1011, A569, Q235, S275JR, SS304, Mild steel & Low carbon steel, etc5Surface TreatmentBlack, self colour, hot dip galvanized, ... with wooden pallets or customer decided Steel Grating