... commonly used on bridge,refinery ,power plant,Sewage treatment plant and so on. No.ItemDescription1Bearing Bar25x3, 25x4, 25x4.5, 25x5 ... A36, A1011, A569, Q235, S275JR, SS304, Mild steel & Low carbon steel, etc5Surface TreatmentBlack, self colour, hot dip galvanized, painted ... standard loading into container steel grating standard factory door picturesteel grating standard contact business card