... USA Houston, Ohio, Charttle, LA, MiddleEast, AUS, Europe and Southeast so on. UsageThe metal grating is widly used on ... commonly used on bridge,refinery ,power plant,Sewage treatment plant and so on. No.ItemDescription1Bearing Bar25x3, 25x4, 25x4.5, 25x5 ... GradeASTM A36, A1011, A569, Q235, S275JR, SS304, Mild steel & Low carbon steel, etc5Surface TreatmentBlack, self colour, hot dip galvanized, painted ...