... 0.5-2.5m Q235 steel grating platform hot sale Material: Mild (low carbon) steel or stainless steel Style:plain,serrated, ... ,serrated-I shapeProcess: Steel grating mesh is made by Q235 low carbon steel welding load flat steel and bars with certain ... 4'' etc 4Material GradeASTM A36, A1011, A569, Q235, S275JR, SS304, Mild steel & Low carbon steel, etc5Surface TreatmentBlack, self color, hot dip galvanized, ...